Size: px
Start display at page:

Download ""

Transcription

1 MEEBAL Exam 1 October 2012 Show all work in your blue book. Points will be deducted if steps leading to answers are not shown. No work outside blue books (such as writing on the flow sheets) will be considered. No outgoing text messages are allowed during the exam. You must use given stream numbering in the problems (no points given if different numbering system is used). Report all answers with three significant digits. You are allowed to use one page of notes and a calculator (no textbooks, computers or tablets such as ipads are allowed). You must pass in your test sheet with your blue book for your exam to be graded (put your name on the exam sheet). 1. (25 points) C 2 H 5 OH is produced commercially by the hydration of C 2 H 4 : C 2 H 4 + H 2 O C 2 H 5 OH Some of the product is converted to (C 2 H 5 ) 2 O in an undesired side reaction: 2C 2 H 5 OH (C 2 H 5 ) 2 O + H 2 O The feed to the reactor (Stream 1) contains C 2 H 4, H 2 O, and an inert gas. A sample of the reactor effluent gas (Stream 2) is analyzed and found to contain 45.0 mol% C 2 H 4, 4.0 mol% C 2 H 5 OH, 0.15 mol% (C 2 H 5 ) 2 O, 8.2 mol% inerts, and the balance H 2 O. The molar flow rate of stream 2 is 500 mol/h. Calculate: a. (5 pts) The molar flow rate (mol/h) of C 2 H 4 in Stream 1 b. (5 pts) The molar composition of Stream 1 (mole fractions) c. (5 pts) The fractional conversion of C 2 H 4 d. (5 pts) The fractional yield of C 2 H 5 OH e. (5 pts) The selectivity of C 2 H 5 OH production relative to (C 2 H 5 ) 2 O production

2

3

4

5

6 MEEBAL Exam 1 October (25 points) C 6 H 14 at atm and 600 K flows at a rate of 24 m 3 /min (Stream 1) into a reactor and is combined with 6.5% excess air (Stream 2). A fraction of C 6 H 14 is burned in the reactor. The product gas (Stream 3), which contains all of the unreacted C 6 H 14 and no CO, goes to a condenser in which both the water and C 6 H 14 are liquefied. The uncondensed gas (CO 2, O 2 and N 2 ) leaves the condenser as Stream 4. The liquid condensate (Stream 5) contains 2.1 kmol/min of water. Assume that the gases are non-ideal and obey the compressibility factor equation of state. Critical constant data: P c (C 6 H 14 ) = 29.9 atm; T c (C 6 H 14 ) = K Calculate: a. (5 pts) Molar flow rate (kmol/min) of C 6 H 14 (Stream 1) b. (5 pts) Molar flow rate (kmol/min) of air entering the reactor (Stream 2) c. (5 pts) Molar flow rate (kmol/min) of C 6 H 14 in Stream 5 d. (5 pts) Fractional conversion of C 6 H 14 e. (5 pts) Molar composition of Stream 4 (mole fractions)

7

8

9

10

11

12

13 MEEBAL Exam 1 October (25 points) CH 4 reacts with Cl 2 to produce CH 3 Cl and HCl. Once formed, CH 3 Cl reacts with Cl 2 in an undesired side reaction to form CH 2 Cl 2. Stream 2 (100 kmol/h) containing 75 mol% CH 4 and the balance Cl 2 is fed to the reactor. In the reactor, a single pass chlorine conversion of 100% is attained, and the molar ratio of CH 3 Cl to CH 2 Cl 2 in the product (Stream 3) is 5:1. The product (Stream 3) flows to the condenser. Two streams emerge from the condenser: the liquid condensate (Stream 5), which contains all of the CH 3 Cl and CH 2 Cl 2 in the reactor effluent, and a gas (Stream 4) containing all of the CH 4 and HCl in the reactor effluent. Stream 5 goes to the distillation column in which the two species (CH 3 Cl and CH 2 Cl 2 ) are separated. Stream 8 contains only CH 3 Cl, and Stream 9 contains only CH 2 Cl 2. Stream 4 is separated into two streams: one that contains only HCl (Stream 6) and the other that only contains CH 4 (Stream 7). Stream 7 is recycled to join the fresh feed (Stream 1, CH 4 and Cl 2 ). The molecular weight of CH 3 Cl is g/mol. Calculate: a. (5 pts) Molar flow rates (kmol/h) of each component (CH 4 and Cl 2 ) in Stream 1 b. (5 pts) Molar flow rate (kmol/h) of Stream 6 c. (5 pts) Molar flow rate (kmol/h) of Stream 7 d. (5 pts) Molar flow rate (kmol/h) of Stream 8 e. (5 pts) Molar flow rate (kmol/h) of Stream 1 required to achieve a CH 3 Cl production rate of 10,000 kg/h

14

15

16

17

18

19 MEEBAL Exam 1 October (25 points) Terephthalic acid (TPA: C 8 H 6 O 4 ) is synthesized from p-xylene (PX: C 8 H 10 ) via the following reaction: C 8 H O 2 C 8 H 6 O 4 + 2H 2 O (PX) (TPA) A fresh feed of pure liquid PX (Stream 1) combines with a recycle stream (Stream 7) containing PX and a catalyst solution (S). The combined stream (Stream 3), which contains S and PX in a 3:1 mass ratio, is fed to the reactor in which 90% of the PX is converted to TPA. A stream of air (Stream 2) at 25 C and 6.0 atm absolute is also fed to the reactor. A liquid stream (Stream 4) containing all of the PX, TPA and solution (S) that entered the reactor goes to a separator in which all of the TPA is removed in Stream 6. Stream 7 contains all of the S and PX that was in Stream 4. A gas stream (Stream 5) containing O 2, N 2 and H 2 O leaves the reactor at 105 C and 5.5 atm absolute, and goes to a condenser in which all the water is condensed and removed in Stream 8. The uncondensed gas (Stream 9) contains 4.0 mol% O kmol/h of TPA is produced (Stream 6). Assume that the gases are ideal. The molecular weights of PX and water are 106 and 18 g/mol, respectively. The density of water is 1 kg/l. Calculate: a. (5 pts) Molar flow rate (kmol/h) of Stream 1 b. (5 pts) Volumetric flow rate (m 3 /h) of Stream 2 c. (5 pts) Volumetric flow rate (m 3 /h) of Stream 5 d. (5 pts) Volumetric flow rate (m 3 /h) of Stream 8 e. (5 pts) Mass flow rate (kg/h) of recycle stream (Stream 7)

20

21

22

23

24

25

26

27

1. (25 points) C 6 H O 2 6CO 2 + 7H 2 O C 6 H O 2 6CO + 7H 2 O

1. (25 points) C 6 H O 2 6CO 2 + 7H 2 O C 6 H O 2 6CO + 7H 2 O MEEBAL Exam 2 November 2013 Show all work in your blue book. Points will be deducted if steps leading to answers are not shown. No work outside blue books (such as writing on the flow sheets) will be considered.

More information

C 6 H H 2 C 6 H 12. n C6H12 n hydrogen n benzene. n C6H6 n H2 100 C 6 H 6 n 2 n C6H H 2. n 1

C 6 H H 2 C 6 H 12. n C6H12 n hydrogen n benzene. n C6H6 n H2 100 C 6 H 6 n 2 n C6H H 2. n 1 1. Cyclohexane (C 6 H 12 ) can be made by the reaction of benzene (C 6 H 6 ) and hydrogen gas. The products from the reactor are sent to a separator where the cyclohexane and some of the unreacted hydrogen

More information

Chapter 4. Fundamentals of Material Balance

Chapter 4. Fundamentals of Material Balance Chapter 4 Fundamentals of Material Balance Introduction to Chapter 4 1) In chapter 4 we will present methods for organizing known information about process variables, setting up martial balance equations,

More information

Fundamentals of Material Balances

Fundamentals of Material Balances Chapter 4 Fundamentals of Material Balances Material Balance-Part 1 Process Classifications 3 type of chemical processes: - Concept of boundary of the process 1. Batch process Feed is charge to the process

More information

CHE 205 Exam 1 Solutions

CHE 205 Exam 1 Solutions CHE 05 Exam 1 Solutions Problem 1 a) Figure +5 Reactor, Still, Condenser, Combustion Heater, Mixing point +1 dots on flowrates +1 for and x for molar composition + for correctl labeled streams b) Degree

More information

THE CHEMICAL REACTION EQUATION AND STOICHIOMETRY

THE CHEMICAL REACTION EQUATION AND STOICHIOMETRY 9.1 Stoichiometry Stoichiometry provides a quantitative means of relating the amount of products produced by chemical reaction(s) to the amount of reactants. You should take the following steps in solving

More information

Fundamentals of Combustion

Fundamentals of Combustion Fundamentals of Combustion Lec 3: Chemical Thermodynamics Dr. Zayed Al-Hamamre Content Process Heat Transfer 1-3 Process Heat Transfer 1-4 Process Heat Transfer 1-5 Theoretical and Excess Air Combustion

More information

SUMMER-18 EXAMINATION Model Answer

SUMMER-18 EXAMINATION Model Answer (ISO/IEC - 700-005 Certified) SUMMER-8 EXAMINATION Subject Title: Stoichiometry Subject code : 735 Page of 7 Important Instructions to examiners: ) The answers should be examined by key words and not as

More information

AE 205 Materials and Energy Balances Asst. Prof. Dr. Tippabust Eksangsri. Chapter 4 Stoichiometry and MB with Reactions

AE 205 Materials and Energy Balances Asst. Prof. Dr. Tippabust Eksangsri. Chapter 4 Stoichiometry and MB with Reactions AE 205 Materials and Energy Balances Asst. Prof. Dr. Tippabust Eksangsri Chapter 4 Stoichiometry and MB with Reactions Stoichiometry Stoichiometry provides a quantitative means of relating the amount of

More information

Process Classification

Process Classification Process Classification Before writing a material balance (MB) you must first identify the type of process in question. Batch no material (mass) is transferred into or out of the system over the time period

More information

2. Review on Material Balances

2. Review on Material Balances 2. Review on Material Balances Objectives After completing this chapter, students should be able to recall the principle of the conservation of mass recall the principle of the stoichiometry of chemical

More information

Exercise 1. Material balance HDA plant

Exercise 1. Material balance HDA plant Process Systems Engineering Prof. Davide Manca Politecnico di Milano Exercise 1 Material balance HDA plant Lab assistants: Adriana Savoca LAB1-1 Conceptual design It is a systematic procedure to evaluate

More information

ChE 344 Winter 2013 Mid Term Exam I Tuesday, February 26, Closed Book, Web, and Notes. Honor Code

ChE 344 Winter 2013 Mid Term Exam I Tuesday, February 26, Closed Book, Web, and Notes. Honor Code ChE 344 Winter 2013 Mid Term Exam I Tuesday, February 26, 2013 Closed Book, Web, and Notes Name Honor Code (Sign at the end of exam period) 1) / 5 pts 2) / 5 pts 3) / 5 pts 4) / 5 pts 5) / 5 pts 6) / 5

More information

FDE 211-MATERIAL AND ENERGY BALANCES: MATERIAL BALANCES ON REACTIVE SYSTEMS. Dr. Ilgın PakerYıkıcı Fall 2015

FDE 211-MATERIAL AND ENERGY BALANCES: MATERIAL BALANCES ON REACTIVE SYSTEMS. Dr. Ilgın PakerYıkıcı Fall 2015 FDE 211-MATERIAL AND ENERGY BALANCES: MATERIAL BALANCES ON REACTIVE SYSTEMS 1 Dr. Ilgın PakerYıkıcı Fall 2015 Learning Objectives Write a balanced chemical reaction and use stoichiometry to determine the

More information

0 o C. H vap. H evap

0 o C. H vap. H evap Solution. Energy P (00 ) Pν x 0 5 ρ 850,4 J kg - J kg Power kg s 000,4 600 70 W Solution. 00 o C H evap H vap 0 o C H liq 00 t H liq (4. x0 t ) dt 4.t x0 0 40 0 40 kj kg - H evap 40,68 J mol - (From Appendix

More information

HOMEWORK 11-1 (pp )

HOMEWORK 11-1 (pp ) CHAPTER 11 HOMEWORK 11-1 (pp. 333 335) VOCABULARY Define. 1. Gay-Lussac s law of combining volumes of gases 2. Avogadro s law Answer each question. 3. Write and explain the equation that expresses the

More information

Exercise 1. Material balance HDA plant

Exercise 1. Material balance HDA plant Process Systems Engineering Prof. Davide Manca Politecnico di Milano Exercise 1 Material balance HDA plant Lab assistants: Roberto Abbiati Riccardo Barzaghi Valentina Depetri LAB1-1 Conceptual design It

More information

1.6 Equilibria All reversible reactions reach an dynamic equilibrium state.

1.6 Equilibria All reversible reactions reach an dynamic equilibrium state. 1.6 Equilibria All reversible reactions reach an dynamic equilibrium state. Many reactions are reversible + 3 2NH 3 The term dynamic means both forward and backward reactions are occurring simultaneously

More information

SUPeR Chemistry CH 222 Practice Exam

SUPeR Chemistry CH 222 Practice Exam SUPeR Chemistry CH 222 Practice Exam This exam has been designed to help you practice working multiple choice problems over the material that will be covered on the first CH 222 midterm. The actual exams

More information

All reversible reactions reach an dynamic equilibrium state.

All reversible reactions reach an dynamic equilibrium state. 11. Equilibrium II Many reactions are reversible + 3 2NH 3 All reversible reactions reach an dynamic equilibrium state. Dynamic equilibrium occurs when forward and backward reactions are occurring at equal

More information

Name AP Chemistry September 30, 2013

Name AP Chemistry September 30, 2013 Name AP Chemistry September 30, 2013 AP Chemistry Exam Part I: 40 Questions, 40 minutes, Multiple Choice, No Calculator Allowed Bubble the correct answer on the blue side of your scantron for each of the

More information

WINTER-15 EXAMINATION Model Answer

WINTER-15 EXAMINATION Model Answer Subject code :(735) Page of 9 Important Instructions to examiners: ) The answers should be examined by key words and not as word-to-word as given in the model answer scheme. ) The model answer and the

More information

Reactors. Reaction Classifications

Reactors. Reaction Classifications Reactors Reactions are usually the heart of the chemical processes in which relatively cheap raw materials are converted to more economically favorable products. In other cases, reactions play essential

More information

Chemistry 142 (Practice) MIDTERM EXAM II November. Fill in your name, section, and student number on Side 1 of the Answer Sheet.

Chemistry 142 (Practice) MIDTERM EXAM II November. Fill in your name, section, and student number on Side 1 of the Answer Sheet. Chemistry 4 (Practice) MIDTERM EXAM II 009 November (a) Before starting, please check to see that your exam has 5 pages, which includes the periodic table. (b) (c) Fill in your name, section, and student

More information

All reversible reactions reach an dynamic equilibrium state.

All reversible reactions reach an dynamic equilibrium state. 11. Equilibrium II Many reactions are reversible + 3 2 All reversible reactions reach an dynamic equilibrium state. Dynamic equilibrium occurs when forward and backward reactions are occurring at equal

More information

CHEMICAL and BIOMOLECULAR ENGINEERING 140 Exam 1 Friday, September 28, 2018 Closed Book. Name: Section:

CHEMICAL and BIOMOLECULAR ENGINEERING 140 Exam 1 Friday, September 28, 2018 Closed Book. Name: Section: CHEMICAL and BIOMOLECULAR ENGINEERING 140 Exam 1 Friday, September 28, 2018 Closed Book Name: Section: Total score: /100 Problem 1: /30 Problem 2: /35 Problem 3: /35 1. (30 points) Short answer questions:

More information

Energy and Energy Balances

Energy and Energy Balances Energy and Energy Balances help us account for the total energy required for a process to run Minimizing wasted energy is crucial in Energy, like mass, is. This is the Components of Total Energy energy

More information

5072 CHEMISTRY (NEW PAPERS WITH SPA) TOPIC 3: FORMULAE, STOICHIOMETRY AND THE MOLE CONCEPT

5072 CHEMISTRY (NEW PAPERS WITH SPA) TOPIC 3: FORMULAE, STOICHIOMETRY AND THE MOLE CONCEPT 5072 CHEMISTRY (NEW PAPERS WITH SPA) TOPIC 3: FORMULAE, STOICHIOMETRY AND THE MOLE CONCEPT 5067 CHEMISTRY (NEW PAPERS WITH PRACTICAL EXAM) TOPIC 3: FORMULAE, STOICHIOMETRY AND THE MOLE CONCEPT LEARNING

More information

Process Design Decisions and Project Economics Prof. Dr. V. S. Moholkar Department of Chemical Engineering Indian Institute of Technology, Guwahati

Process Design Decisions and Project Economics Prof. Dr. V. S. Moholkar Department of Chemical Engineering Indian Institute of Technology, Guwahati Process Design Decisions and Project Economics Prof. Dr. V. S. Moholkar Department of Chemical Engineering Indian Institute of Technology, Guwahati Module - 2 Flowsheet Synthesis (Conceptual Design of

More information

Shortcut Distillation. Agung Ari Wibowo, S.T., M.Sc Politeknik Negeri Malang Malang - Indonesia

Shortcut Distillation. Agung Ari Wibowo, S.T., M.Sc Politeknik Negeri Malang Malang - Indonesia Shortcut Distillation Agung Ari Wibowo, S.T., M.Sc Politeknik Negeri Malang Malang - Indonesia The use of separation column in HYSYS The column utilities in HYSYS can be used to model a wide variety of

More information

Introduction to the Problem-Solving Methodology (PSM)

Introduction to the Problem-Solving Methodology (PSM) Problem Name: Problem Description: Date: P01 Simple Reactor Introduction to the Problem-Solving Methodology (PSM) Your Name: Problem Session Objectives To learn the five stages of the problem solving methodology.

More information

Chapter 9 The Chemical Reaction Equation and Stoichiometry 9.1 Stoichiometry

Chapter 9 The Chemical Reaction Equation and Stoichiometry 9.1 Stoichiometry Chapter 9 The Chemical Reaction Equation and Stoichiometry 9.1 Stoichiometry The stoichiometric coefficients in the chemical reaction equation Is (1 for C 7 H 16, 11 for O 2 and so on). Another way to

More information

Problems Points (Max.) Points Received

Problems Points (Max.) Points Received Chemical Engineering 142 Chemical Kinetics and Reaction Engineering Midterm 1 Tuesday, October 8, 2013 8:10 am-9:30 am The exam is 100 points total. Please read through the questions very carefully before

More information

13. Chemical Equilibria

13. Chemical Equilibria 13. Chemical Equilibria Many reactions are reversible + 3 2 All reversible reactions reach an dynamic equilibrium state. Dynamic equilibrium occurs when forward and backward reactions are occurring at

More information

CHEMISTRY 202 Hour Exam I. Dr. D. DeCoste T.A.

CHEMISTRY 202 Hour Exam I. Dr. D. DeCoste T.A. CHEMISTRY 0 Hour Exam I September, 016 Dr. D. DeCoste Name Signature T.A. This exam contains 3 questions on 11 numbered pages. Check now to make sure you have a complete exam. You have two hours to complete

More information

Chem 105/107 Exam #3 Fall 2012

Chem 105/107 Exam #3 Fall 2012 November 12 th, 2012 Name: CLID: Score: Chem 105/107 Exam #3 Fall 2012 There are 17 multiple choices that are worth 3 points each. There are 4 problems and 1 bonus problem. Try to answer the questions,

More information

Chemical Reactions. Chapter 17

Chemical Reactions. Chapter 17 Chemical Reactions Chapter 17 Chemical Equations C+O 2 CO 2 C (s) +O 2 (g) CO 2 (g) Reactants on left, products on right Each are balanced because same number of atoms of reactants as products Some equations

More information

Homework 02 - Ideal Gases

Homework 02 - Ideal Gases HW02 - Ideal Gases This is a preview of the draft version of the quiz Started: Aug 8 at 4:48pm Quiz Instructions Homework 02 - Ideal Gases Question 1 A gas is enclosed in a 10.0 L tank at 1200 mmhg pressure.

More information

Web Solved Problems Web Example SP-8.1 Hydrodealkylation of Mesitylene in a PFR CH 3 H 2. m-xylene can also undergo hydrodealkylation to form toluene:

Web Solved Problems Web Example SP-8.1 Hydrodealkylation of Mesitylene in a PFR CH 3 H 2. m-xylene can also undergo hydrodealkylation to form toluene: Chapter 8 Multiple Reactions W8-1 Web Solved Problems Web Example SP-8.1 Hydrodealkylation of Mesitylene in a PFR The production of m-xylene by the hydrodealkylation of mesitylene over a Houdry Detrol

More information

5.1.2 How Far? Equilibrium

5.1.2 How Far? Equilibrium 5.1.2 How Far? Equilibrium Equilibrium constant Kc Kc = equilibrium constant For a generalised reaction ma + nb pc + qd [ C] p [D] q m,n,p,q are the stoichiometric balancing [ A] m [B] n numbers A,B,C,D

More information

ChE 344 Chemical Reaction Engineering Winter 1999 Final Exam. Open Book, Notes, CD ROM, Disk, and Web

ChE 344 Chemical Reaction Engineering Winter 1999 Final Exam. Open Book, Notes, CD ROM, Disk, and Web ChE 344 Chemical Reaction Engineering Winter 1999 Final Exam Open Book, Notes, CD ROM, Disk, and Web Name Honor Code 1) /25 pts 2) /15 pts 3) /10 pts 4) / 3 pts 5) / 6 pts 6) / 8 pts 7) / 8 pts 8) / 5

More information

HONORS CHEMISTRY Putting It All Together II

HONORS CHEMISTRY Putting It All Together II NAME: SECTION: HONORS CHEMISTRY Putting It All Together II Calculations in Chemistry It s time to pull out your calculators! In the first review sheet, you were able to write formulas of compounds when

More information

ST. FRANCIS SECONDARY SCHOOL HALF YEARLY EXAMINATION SPECIMEN PAPER FORM 4 CHEMISTRY TIME: 2 HOURS. Name: Total Mark from 90:

ST. FRANCIS SECONDARY SCHOOL HALF YEARLY EXAMINATION SPECIMEN PAPER FORM 4 CHEMISTRY TIME: 2 HOURS. Name: Total Mark from 90: ST. FRANCIS SECONDARY SCHOOL HALF YEARLY EXAMINATION SPECIMEN PAPER FORM 4 CHEMISTRY TIME: 2 HOURS Name: Total Mark from 90: A copy of the periodic table is provided during the exam. You are reminded of

More information

Chemistry 1A, Fall 2007 KEY Midterm Exam III November 13, 2007 (90 min, closed book)

Chemistry 1A, Fall 2007 KEY Midterm Exam III November 13, 2007 (90 min, closed book) Name: SID: Chemistry 1A, Fall 2007 KEY Midterm Exam III November 13, 2007 (90 min, closed book) TA: Section: Please read this first: Write your name and that of your TA on all 8 pages of the exam Test-taking

More information

Chapter 10 Practice. Name: Multiple Choice Identify the choice that best completes the statement or answers the question.

Chapter 10 Practice. Name: Multiple Choice Identify the choice that best completes the statement or answers the question. Name: Score: 0 / 18 points (0%) [3 open ended questions not graded] Chapter 10 Practice Multiple Choice Identify the choice that best completes the statement or answers the question. 1. A sample of gas

More information

ChE 344 Winter 2011 Mid Term Exam I + Solution. Closed Book, Web, and Notes

ChE 344 Winter 2011 Mid Term Exam I + Solution. Closed Book, Web, and Notes ChE 344 Winter 011 Mid Term Exam I + Thursday, February 17, 011 Closed Book, Web, and Notes Name Honor Code (sign at the end of exam) 1) / 5 pts ) / 5 pts 3) / 5 pts 4) / 15 pts 5) / 5 pts 6) / 5 pts 7)

More information

REMOVE THIS PAGE PRIOR TO STARTING EXAM.

REMOVE THIS PAGE PRIOR TO STARTING EXAM. REMOVE THIS PAGE PRIOR TO STARTING EXAM. 1 2 ANSWER KEY CHEMISTRY F14O3 SECOND EXAM 11/10/99 PROFESSOR J. MORROW PRINT NAME, LAST: FIRST: I.D.# : MAXIMUM POINT VALUE IS IN PARENTHESES 1. (15) 9. (15) 17.

More information

**continued on next page**

**continued on next page** Chapter 9 Stoichiometry Section 9.1 Introduction to Stoichiometry Standard.e.: Students know how to calculate the masses of reactant and products in a chemical reaction from the mass of one of the reactants

More information

Chemical Reaction Engineering. Multiple Reactions. Dr.-Eng. Zayed Al-Hamamre

Chemical Reaction Engineering. Multiple Reactions. Dr.-Eng. Zayed Al-Hamamre Chemical Reaction Engineering Multiple Reactions Dr.-Eng. Zayed Al-Hamamre 1 Content Types of Reactions Selectivity Reaction Yield Parallel Reactions Series Reactions Net Rates of Reaction Complex Reactions

More information

Chemistry CP Putting It All Together II

Chemistry CP Putting It All Together II Chemistry CP Putting It All Together II Name: Date: Calculations in Chemistry It s time to pull out your calculators! In the first review sheet, you were able to write formulas of compounds when different

More information

Chapter 3. Mass Relations in Chemistry; Stoichiometry

Chapter 3. Mass Relations in Chemistry; Stoichiometry Chapter 3 Mass Relations in Chemistry; Stoichiometry Copyright 2001 by Harcourt, Inc. All rights reserved. Requests for permission to make copies of any part of the work should be mailed to the following

More information

We use a special symbol to denote a reaction which is reversible: The double-headed arrow means the reaction can go in either direction

We use a special symbol to denote a reaction which is reversible: The double-headed arrow means the reaction can go in either direction Reversible reactions Some reactions do not go to completion we don t get 100% yield because not all of the reactants react to form products. One of the reasons for this is that some reactions are reversible

More information

Chemistry I Chapter 9 Stoichiometry Objective Sheet. Equation 1. Objectives: 1. Define stoichiometry

Chemistry I Chapter 9 Stoichiometry Objective Sheet. Equation 1. Objectives: 1. Define stoichiometry Chemistry I Chapter 9 Stoichiometry Objective Sheet Equation 1 2 C 2 H 2 (g) + 5 O 2 (g) 4 CO 2 (g) + 2 H 2 O (g), at STP C 2 H 2 (acetylene) 26 g/mol O 2 32 g/mol CO 2 44 g/mol H 2 O 18 g/mol Objectives:

More information

Research tells us fourteen out of any ten individuals like chocolate. Happy Halloween!

Research tells us fourteen out of any ten individuals like chocolate. Happy Halloween! CHEMISTRY 101 Hour Exam II October 31, 2006 Adams/Le Name KEY Signature T.A./Section Research tells us fourteen out of any ten individuals like chocolate. Happy Halloween! This exam contains 17 questions

More information

EXTRA HOMEWORK 5A 1. The pressure of the first two gases below is determined with a manometer that is filled with mercury (density = 13.6 g/ml). The pressure of the last two gases below is determined with

More information

Chem. 1A Midterm 1 Version A October 19, 2018

Chem. 1A Midterm 1 Version A October 19, 2018 First initial of last name Chem. 1A Midterm 1 Version A October 19, 2018 Name: Print Neatly. You will lose 1 point if I cannot read your name or perm number. Perm Number: All work must be shown on the

More information

Test Booklet. Subject: SC, Grade: HS CST High School Chemistry Part 2. Student name:

Test Booklet. Subject: SC, Grade: HS CST High School Chemistry Part 2. Student name: Test Booklet Subject: SC, Grade: HS Student name: Author: California District: California Released Tests Printed: Thursday January 16, 2014 1 Theoretically, when an ideal gas in a closed container cools,

More information

Process Design Decisions and Project Economics Prof. Dr. V. S. Moholkar Department of Chemical Engineering Indian Institute of Technology, Guwahati

Process Design Decisions and Project Economics Prof. Dr. V. S. Moholkar Department of Chemical Engineering Indian Institute of Technology, Guwahati Process Design Decisions and Project Economics Prof. Dr. V. S. Moholkar Department of Chemical Engineering Indian Institute of Technology, Guwahati Module - 2 Flowsheet Synthesis (Conceptual Design of

More information

for free revision past papers visit:

for free revision past papers visit: NAME ADM NO:. STUNDENT S SIGNATURE DATE.. SCHOOL 233/2 FORM THREE CHEMISTRY THEORY Paper 2 END YEAR 2017 EXAMS. Time: 2 Hrs FORM THREE CHEMISTRY 233/2 INSTRUCTIONS TO CANDIDATES Write your Name and Index

More information

1 Vitamin C (L-ascorbic acid) is present in fresh fruit and vegetables although prolonged cooking destroys it. The structure of ascorbic acid, C 6 H 8

1 Vitamin C (L-ascorbic acid) is present in fresh fruit and vegetables although prolonged cooking destroys it. The structure of ascorbic acid, C 6 H 8 1 Vitamin C (L-ascorbic acid) is present in fresh fruit and vegetables although prolonged cooking destroys it. The structure of ascorbic acid, C 6 H 8 6, is shown below. H (a) The amount of ascorbic acid

More information

Chemistry. Chapter 17

Chemistry. Chapter 17 Chemistry Chapter 17 Chemical Equations C+O 2 CO 2 C (s) +O 2 (g) CO 2 (g) Reactants on left, products on right Each are balanced because same number of atoms of reactants as products Balancing Chemical

More information

Chemical Kinetics and Reaction Engineering

Chemical Kinetics and Reaction Engineering Chemical Kinetics and Reaction Engineering MIDTERM EXAMINATION II Friday, April 9, 2010 The exam is 100 points total and 20% of the course grade. Please read through the questions carefully before giving

More information

Chapter 4. Fundamentals of Material Balances

Chapter 4. Fundamentals of Material Balances Chapter 4 Fundamentals of Material Balances Introduction to Chapter 4 1) Certain restrictions imposed by nature must be taken into account when designing a new process or analyzing an existing one 2) The

More information

. This atom contains unpaired electrons. The

. This atom contains unpaired electrons. The Name (PRINT clearly) Seat Number Exam 2 (100 points) Chemistry 1303.002 October 25, 2017 On my honor, I have neither given nor received unauthorized aid on this exam. Signed Date Write your answer in the

More information

AE 205 Materials and Energy Balances Asst. Prof. Dr. Tippabust Eksangsri. Chapter 6 Energy Balances on Chemical Processes

AE 205 Materials and Energy Balances Asst. Prof. Dr. Tippabust Eksangsri. Chapter 6 Energy Balances on Chemical Processes AE 205 Materials and Energy Balances Asst. Prof. Dr. Tippabust Eksangsri Chapter 6 Energy Balances on Chemical Processes Thermodynamics system surroundings system boundary Forms of Energy 1. Energy Possessed

More information

Mole: base unit for an amount of substance A mole contains Avogadro s number (N A ) of particles (atoms, molecules, ions, formula units )

Mole: base unit for an amount of substance A mole contains Avogadro s number (N A ) of particles (atoms, molecules, ions, formula units ) Mole: base unit for an amount of substance A mole contains Avogadro s number (N A ) of particles (atoms, molecules, ions, formula units ) N A 6.0 10 mol -1 1 mol substance contains N A Molar mass (g/mol)

More information

1. All the solutions have the same molality. 2. All the solutions have the same molarity.

1. All the solutions have the same molality. 2. All the solutions have the same molarity. I. (41 points) A. (12 points) Write your answers on the blanks provided. 1. Which of the following solutes would be more soluble in water? a. CH 3 OH or C 17 H 35 OH b. C 2 H 5 Cl or NaCl c. CHCl 3 or

More information

Stoichiometry ( ) ( )

Stoichiometry ( ) ( ) Stoichiometry Outline 1. Molar Calculations 2. Limiting Reactants 3. Empirical and Molecular Formula Calculations Review 1. Molar Calculations ( ) ( ) ( ) 6.02 x 10 23 particles (atoms or molecules) /

More information

Properties of Gases. Properties of Gases. Pressure. Three phases of matter. Definite shape and volume. solid. Definite volume, shape of container

Properties of Gases. Properties of Gases. Pressure. Three phases of matter. Definite shape and volume. solid. Definite volume, shape of container Properties of Gases Properties of Gases Three phases of matter solid Definite shape and volume liquid Definite volume, shape of container gas Shape and volume of container Properties of Gases A gas is

More information

Chapter. Measuring Concentration. Table of Contents

Chapter. Measuring Concentration. Table of Contents Measuring Concentration Table of Contents Introduction 1. Percent Concentration 2. Molarity 3. Preparation of a with a Desired Concentration Measuring Concentration Warm Up How do you classify solutions

More information

Lecture 4. Mole balance: calculation of membrane reactors and unsteady state in tank reactors. Analysis of rate data

Lecture 4. Mole balance: calculation of membrane reactors and unsteady state in tank reactors. Analysis of rate data Lecture 4 Mole balance: calculation of membrane reactors and unsteady state in tank reactors. nalysis of rate data Mole alance in terms of Concentration and Molar Flow Rates Working in terms of number

More information

All reversible reactions reach an dynamic equilibrium state. H 2 O+ CO H 2 +CO 2. Rate of reverse reaction (H 2 + CO 2 )

All reversible reactions reach an dynamic equilibrium state. H 2 O+ CO H 2 +CO 2. Rate of reverse reaction (H 2 + CO 2 ) 4.2 Equilibria Many reactions are reversible + 3H 2 2NH 3 All reversible reactions reach an dynamic equilibrium state. Dynamic equilibrium occurs when forward and backward reactions are occurring at equal

More information

CBE 142: Chemical Kinetics & Reaction Engineering

CBE 142: Chemical Kinetics & Reaction Engineering CBE 142: Chemical Kinetics & Reaction Engineering Midterm #2 November 6 th 2014 This exam is worth 100 points and 20% of your course grade. Please read through the questions carefully before giving your

More information

CHEM 101 Exam 2. Page 1

CHEM 101 Exam 2. Page 1 Form 1 (White) October 12, 2001 Page 1 Section This exam consists of 7 pages. When the exam begins make sure you have one of each. Print your name at the top of each page now The last page is blank and

More information

Lesson 22: Theoretical Yield Actual Yield Percent Yield

Lesson 22: Theoretical Yield Actual Yield Percent Yield Lesson 22: Theoretical Yield Actual Yield Percent Yield Do Now (5pts) 3.20.8 Copy down info from CJ board. Answer questions in Box of Lesson 22 note packet. You have a test in one week it ll be multiple

More information

ME 354 Tutorial, Week#13 Reacting Mixtures

ME 354 Tutorial, Week#13 Reacting Mixtures ME 354 Tutorial, Week#13 Reacting Mixtures Question 1: Determine the mole fractions of the products of combustion when octane, C 8 H 18, is burned with 200% theoretical air. Also, determine the air-fuel

More information

Lecture 25: Manufacture of Maleic Anhydride and DDT

Lecture 25: Manufacture of Maleic Anhydride and DDT Lecture 25: Manufacture of Maleic Anhydride and DDT 25.1 Introduction - In this last lecture for the petrochemicals module, we demonstrate the process technology for Maleic anhydride and DDT. - Maleic

More information

CHEMISTRY 202 Hour Exam I. Dr. D. DeCoste T.A.

CHEMISTRY 202 Hour Exam I. Dr. D. DeCoste T.A. CHEMISTRY 202 Hour Exam I September 22, 2016 Dr. D. DeCoste Name Signature T.A. This exam contains 23 questions on 11 numbered pages. Check now to make sure you have a complete exam. You have two hours

More information

Exam 2. CHEM Spring Name: Class: Date:

Exam 2. CHEM Spring Name: Class: Date: CHEM-112-01 Spring 2012 Name: Class: Date: 1. Record your name and ID number on the scantron form. 2. Record the test ID letter in the top right box of the scantron form. 3. Record all of your answers

More information

Module: 5. Lecture: 29

Module: 5. Lecture: 29 Module: 5 Lecture: 29 METHYL CHLORIDE and Dichloromethane INTRODUCTION METHYL CHLORIDE Methyl chloride (CH3Cl) which is also known as chloromethane, R-40 or HCC 40, is a chemical compound of the group

More information

Chemistry B Final Exam Review Packet Winter 2017

Chemistry B Final Exam Review Packet Winter 2017 Chemistry B Final Exam Review Packet Winter 2017 The final exam will count as approximately 15% of your final grade in Chemistry B. Exam Format: Multiple choice ~35 questions Free Response/Calculations:

More information

CHEMICAL REACTORS - PROBLEMS OF REACTOR ASSOCIATION 47-60

CHEMICAL REACTORS - PROBLEMS OF REACTOR ASSOCIATION 47-60 2011-2012 Course CHEMICL RECTORS - PROBLEMS OF RECTOR SSOCITION 47-60 47.- (exam jan 09) The elementary chemical reaction in liquid phase + B C is carried out in two equal sized CSTR connected in series.

More information

CHEMISTRY 202 Practice Hour Exam III. Dr. D. DeCoste T.A (60 pts.) 21 (15 pts.) 22 (20 pts.) 23 (25 pts.) Total (120 pts)

CHEMISTRY 202 Practice Hour Exam III. Dr. D. DeCoste T.A (60 pts.) 21 (15 pts.) 22 (20 pts.) 23 (25 pts.) Total (120 pts) CHEMISTRY 202 Practice Hour Exam III Fall 2016 Dr. D. DeCoste Name Signature T.A. This exam contains 23 questions on 10 numbered pages. Check now to make sure you have a complete exam. You have two hours

More information

Name AP Chemistry / / Chapter 5 Collected AP Exam Free Response Questions Answers

Name AP Chemistry / / Chapter 5 Collected AP Exam Free Response Questions Answers Name AP Chemistry / / Chapter 5 Collected AP Exam Free Response Questions 1980 2010 - Answers 1982 - #5 (a) From the standpoint of the kinetic-molecular theory, discuss briefly the properties of gas molecules

More information

(b) Increase in pressure. (1)

(b) Increase in pressure. (1) 1 This question is about the equilibrium reaction between hydrogen and carbon dioxide. H 2 (g) + O 2 (g) H 2 O(g) + O(g) H = +40 kj mol 1 What effect would the following changes have on the rate of reaction

More information

Systems Engineering Spring Group Project #1: Process Flowsheeting Calculations for Acetic Anhydride Plant. Date: 2/25/00 Due: 3/3/00

Systems Engineering Spring Group Project #1: Process Flowsheeting Calculations for Acetic Anhydride Plant. Date: 2/25/00 Due: 3/3/00 10.551 Systems Engineering Spring 2000 Group Project #1: Process Flowsheeting Calculations for Acetic Anhydride Plant Date: 2/25/00 Due: 3/3/00 c Paul I. Barton, 14th February 2000 At our Nowhere City

More information

Gases. Chapter 5. Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display.

Gases. Chapter 5. Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Gases Chapter 5 Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display. 1 Elements that exist as gases at 25 0 C and 1 atmosphere 2 3 Physical Characteristics of Gases

More information

CH 221 Chapter Four Part I Concept Guide

CH 221 Chapter Four Part I Concept Guide 1. Balancing Chemical Equations CH 221 Chapter Four Part I Concept Guide Description When chlorine gas, Cl 2, is added to solid phosphorus, P 4, a reaction occurs to produce liquid phosphorus trichloride,

More information

CHM 1045 Qualifying Exam

CHM 1045 Qualifying Exam CHM 1045 Qualifying Exam 1. Which of the following is the basic unit of volume in the metric system? A) liter B) kilogram C) meter D) centimeter E) gram 2. Which of the following is the largest unit? A)

More information

Chem 11 Exam Preparation

Chem 11 Exam Preparation Chem 11 Exam Preparation Format: You won t be surprised it looks like a longer version of your quizzes Part A: Multiple Choice without calculations. 60 questions worth ½ pt each. 30 points total. Part

More information

Question 1.1: Calculate the molecular mass of the following: (i) H 2 O (ii) CO 2 (iii) CH 4 (i) H 2 O: The molecular mass of water, H 2 O = (2 Atomic mass of hydrogen) + (1 Atomic mass of oxygen) = [2(1.0084)

More information

CHEM1109 Answers to Problem Sheet Isotonic solutions have the same osmotic pressure. The osmotic pressure, Π, is given by:

CHEM1109 Answers to Problem Sheet Isotonic solutions have the same osmotic pressure. The osmotic pressure, Π, is given by: CHEM1109 Answers to Problem Sheet 5 1. Isotonic solutions have the same osmotic pressure. The osmotic pressure, Π, is given by: Π = MRT where M is the molarity of the solution. Hence, M = Π 5 (8.3 10 atm)

More information

CHEM 101A EXAM 1 SOLUTIONS TO VERSION 1

CHEM 101A EXAM 1 SOLUTIONS TO VERSION 1 CHEM 101A EXAM 1 SOLUTIONS TO VERSION 1 Multiple-choice questions (3 points each): Write the letter of the best answer on the line beside the question. Give only one answer for each question. B 1) If 0.1

More information

no particular section, maybe a bit in PS1 Figs, Accuracy, Precision, Density)

no particular section, maybe a bit in PS1 Figs, Accuracy, Precision, Density) Information about 1st ACS Exam (Part of the Final Exam) More Calculation Intensive Exam The exam has 70 questions to be answered in 120 minutes. The topical breakdown is as follows. # of Q s Topic PS s

More information

1. My answers for this Chemistry 102 exam should be graded with the answer sheet associated with: a) Form A b) Form B c) Form C d) Form D e) Form E

1. My answers for this Chemistry 102 exam should be graded with the answer sheet associated with: a) Form A b) Form B c) Form C d) Form D e) Form E Hour Exam I Page 1 1. My answers for this Chemistry 102 exam should be graded with the answer sheet associated with: a) Form A b) Form B c) Form C d) Form D e) Form E 2. Consider the measurements 9.74

More information

c) Explain the observations in terms of the DYNAMIC NATURE of the equilibrium system.

c) Explain the observations in terms of the DYNAMIC NATURE of the equilibrium system. Chemical Equilibrium - Part A: 1. At 25 o C and 101.3 kpa one mole of hydrogen gas and one mol of chlorine gas are reacted in a stoppered reaction vessel. After a certain time, three gases are detected

More information

CHEMISTRY 122 [Tyvoll] PRACTICE EXAM II Possibly Useful Information: 2) ( ) ( ) ( ) ( ) ( ) R = L atm/mol K

CHEMISTRY 122 [Tyvoll] PRACTICE EXAM II Possibly Useful Information: 2) ( ) ( ) ( ) ( ) ( ) R = L atm/mol K Name Student ID # CHEMISTRY 122 [Tyvoll] PRACTICE EXAM II Spring 2008 1 2 3 4 5 Possibly Useful Information: 1) ( ) ( ) ( ) ( ) ( ) d (H 2 O) = 1.00 g/ml 2) ( ) ( ) ( ) ( ) ( ) R = 0.0821 L atm/mol K 3)

More information

Stoichiometry. A. The Meaning of Coefficients in a Reaction Equation 1. Consider the following reaction: 200 H O H 2 O or

Stoichiometry. A. The Meaning of Coefficients in a Reaction Equation 1. Consider the following reaction: 200 H O H 2 O or Stoichiometry A. The Meaning of Coefficients in a Reaction Equation 1. Consider the following reaction: 2H 2 + O 2 2H 2 O The coefficients in the equation tell us that two hydrogen molecules react with

More information

Class XI Chapter 1 Some Basic Concepts of Chemistry Chemistry

Class XI Chapter 1 Some Basic Concepts of Chemistry Chemistry Question 1.1: Calculate the molecular mass of the following: (i) H 2 O (ii) CO 2 (iii) CH 4 (i) H 2 O: The molecular mass of water, H 2 O = (2 Atomic mass of hydrogen) + (1 Atomic mass of oxygen) = [2(1.0084)

More information

Math Without a Calculator for AP Chemistry

Math Without a Calculator for AP Chemistry Math Without a Calculator for AP Chemistry Number Sense 6.02 1000 6.02 0.01 0.1 1000 0.02 1000 0.3 1000 0. 1000 Let fractions be your friends! Fraction Decimal Percent 3/ 0.80 Example: 3.00 1.2 3.00 6

More information