Geology 222 Problem Geotherm
|
|
- Toby Blake
- 6 years ago
- Views:
Transcription
1 Geology 222 Problem Geotherm 1. Show the following on a single plot of Temperature (horizontal axis -- increasing to the right) versus Depth (vertical axis -- increasing downward from the surface of the earth). Use graph paper or a plotting program such as Excel or Kaleidagraph please. Assume that the density of the crust is uniform at 2.85x10 3 kg/m 3. Use g=9.78 m/s 2. The three geothermal gradients should pass through the normal conditions at the surface (0 C or 273 K, and 1 bar). You may use either C or K for the temperature axis. a) a linear geothermal gradient of 15 K/km ( Blueschist metamorphic geotherm ) b) a linear geothermal gradient of 30 K/km ( Barrovian metamorphic geotherm ) c) a linear geothermal gradient of 60 K/km ( Buchan metamorphic geotherm ) d) the stability fields of the aluminosilicate minerals according to Michael Holdaway (triple point: 3.76 kb, 501 C; 1 bar intercepts: Kyanite-Andalusite = 200 C, Andalusite- Sillimanite = 770 C; Kyanite-Sillimanite curve passes through 10 kb, 810 C) e) a "wet" granite melting curve that passes through the following points P (GPa) T( C) f) the univariant reaction line for 2 Wo + An = Gr + Qz. Calculate the location of the reaction using the enthalpy, entropy, and volume data for the minerals as described in the attached sheet. 2. On the same Temperature-Depth graph, show a steady-state geotherm for a 30 km thick crust with the following properties: a thermal conductivity of 2.5 W/mK, an average heat production of 2.0 x 10-6 W/m 3, and heat flux from the mantle into the base of the crust of W/m 2 as derived in the attached model calculation.
2 A Crustal Geostatic Gradient Pressure increases with depth in the earth due to the increasing mass of the rock overburden. Computing the pressure as a function of depth in a homogeneous crust is a straightforward calculation. In SI units, pressure (Pascals) is the force (Newtons) per unit area (meters 2 ) such that 1 Pa = 1 N/m 2. You may also see pressure written as bars or atmospheres with 1 bar = 1 x 10 5 Pa = atm. To see how the pressure would increase with depth in the crust (the geostatic gradient), consider the pressure beneath a one meter cube of granite (density = 2.8x10 3 kg/m 3 ). The force applied by the 2.8x10 3 kg of this cube to the rocks beneath it is given by force = mass x acceleration = (2.8x10 3 ) (9.8 m/s 2 ) = 2.7x10 4 N. where (9.8 m/s 2 ) = g, the acceleration of gravity at the surface of the earth. Because this force is distributed across the 1 m 2 area of the base of the cube, the pressure beneath the cube is pressure = 2.7x104 N 1m 2 = 2.7x10 4 Pa. If another cube is placed on top of the first one, the pressure under the two cubes will be 5.4x10 4 Pa. As more cubes are stacked, the pressure at the base rises at the rate of 2.7x10 4 Pa/m = 2.7x10 7 Pa/km = 27 MPa/km = 270 bars/km where MPa (=10 6 Pa) stands for megapascals. Alternatively, this pressure distribution may be expressed as 3.7 km/kbar = 37 km/gpa where GPa (=10 9 Pa) stands for gigapascals. Remember that these numbers are only correct for a uniform crustal density of 2.8x10 3 kg/m 3. Higher densities will yield higher pressure gradients. The geostatic gradient changes with depth as the density increases. Our procedure may be generalized to the earth with the following differential equation: dp(r) dr = g(r)ρ(r) where r is the radial distance from the center of the earth. By integrating this equation, pressure can be found for any depth if density and gravity are known. Density, gravity, and therefore pressure vary with depth as shown in the following graphs found in Tromp (2001):
3 Geology 222 Equilibrium Calculations The Gibbs free energy of a reaction among minerals ΔG P, T at pressure (P) and temperature (T) can be calculated as ΔG P, T = ΔH P, T - T ΔS P, T (1) where ΔH P, T is the molar enthalpy of reaction at T and P and ΔS P, T is the molar entropy of reaction at T and P defined by the differences in enthalpy and entropy between the products and reactants: and ΔH P, T = ΣH P, T (products) ΣH P, T (reactants) (2) ΔS P, T = ΣS P, T (products) ΣS P, T (reactants) (3) where the values for each product and reactant mineral are multiplied by the coefficient of that mineral in the reaction. At equilibrium, the molar Gibbs energy of the reaction is zero: ΔG P, T = 0 (4) If only solids are involved, we can assume that the change in molar volume and the change in molar entropy for the reaction are both constant as the pressure and temperature are changed: and ΔH P, T = ΔH 1, 298 ΔS P, T = ΔS 1,298 In reality both vary with P and T, but the effects are small. With these assumptions, ΔG P, T = ΔH 1, ΔV 1, 298 (P 1) T ΔS 1,298 (5) where ΔH 1, 298, ΔV 1, 298, and ΔS 1,298 are constants, the 1 bar, 298 K values for molar enthalpy of reaction (J/mol), molar volume of reaction (J/(mol*bar)), and molar entropy of reaction (J/(mol*K)). Combining equations (4) and (5), at equilibrium we have: PP =,,, +,, TT (6) Equation (6) gives the pressure of the reaction among the solids as a function of temperature.
4 Steady-State Geotherm Problem : Calculate the setady-state geotherm for a 30 km thick crust with a uniform distribution of heat producing elements. Assume that the average heat production (A) is 2.0 x 10-6 W/m 3, that the steady mantle heat flux into the base of the crust is 1.0 x 10-2 W/m 2, that the thermal conductivity (k) of the crust is 2.5 W/mK, that the volumetric heat capacity (ρc P ) of the crust is 2.5 x 10 6 J/m 3 K, and that the temperature (T) at the surface is 0 C. Let the depth z=0 at the surface and z=- 3.0 x 10 4 m at the base of the crust. The required heat conduction equations are: heat flux = k T z t and T t z = k ρc P 2 Τ z 2 t + Α ρc P where t (s) is the time, ρ (Kg/m 3 ) is the density of the crust, and C P (J/KgK) is the specific heat capacity of the crust. The second equation assumes (1) that the thermal parameters for the crust are uniform throughout the crust and (2) that the symmetry of the problem permits a one-dimensional solution. In the steady-state, T/ t = 0. Therefore, the heat conduction equation reduces to d 2 Τ = A dz 2 k, which is a comparatively simple differential equation. The solution is of the form Τ= A 2k z2 + αz + β with dt dz = A k z+α where α and β are constants. At the surface, z=0 and T=0; therefore, β=0. At z=-30,000 m, heat flux = k dt dz = k A k z kα = 0.01 W/m2, which may be solved for α to yield The solution is then α= Az k 0.01 = 2.0x x10 4 k = K/m. T= 4.0x10-7 z z. The heat flow at the surface for this model is given by heat flux = k dt dz z=0 = kα = (2.5) (0.028) = 0.07 W/m2.
5
6
Geology 222b Problem Geothermometry
Geology 222b Problem Geothermometry 1. Show the following on a single plot of Temperature (horizontal axis -- increasing to the right) versus Depth (vertical axis -- increasing downward from the surface
More informationGeology 212 Petrology Prof. Stephen A. Nelson. Thermodynamics and Metamorphism. Equilibrium and Thermodynamics
Geology 212 Petrology Prof. Stephen A. Nelson This document last updated on 02-Apr-2002 Thermodynamics and Metamorphism Equilibrium and Thermodynamics Although the stability relationships between various
More informationForms of Energy. Energy: commonly defined as the capacity to do work (i.e. by system on its surroundings); comes in many forms
Forms of Energy Energy: commonly defined as the capacity to do work (i.e. by system on its surroundings); comes in many forms Work: defined as the product of a force (F) times times a displacement acting
More informationSolubility, mixtures, non-ideality OUTLINE
Solubility, mixtures, non-ideality Equilibrium? OUTLINE Class exercise next class bring laptop, or use class tablet Enthalpy, Entropy The Gibbs Function ΔG and K Mixtures Chemical Potential 1 Enthalpy
More information3.012 PS 7 3.012 Issued: 11.05.04 Fall 2004 Due: 11.12.04 THERMODYNAMICS 1. single-component phase diagrams. Shown below is a hypothetical phase diagram for a single-component closed system. Answer the
More informationProblem Set 10 Solutions
Chemistry 360 Dr Jean M Standard Problem Set 10 Solutions 1 Sketch (roughly to scale) a phase diagram for molecular oxygen given the following information: the triple point occurs at 543 K and 114 torr;
More informationMineral Stability and Phase Diagrams Introduction
1 of 10 10/10/2002 2:50 PM Prof. Stephen A. Nelson Geology 211 Tulane University Mineralogy and Phase Diagrams Introduction This document last updated on 10-Oct-2002 As we discussed previously, there are
More informationGeology 633 Metamorphism and Lithosphere Evolution. Thermodynamic calculation of mineral reactions I: Reactions involving pure phases
Geology 633 Metamorphism and Lithosphere Evolution Thermodynamic calculation of mineral reactions I: Reactions involving pure phases The formulation for the free energy change of any reaction involving
More informationPhase Equilibria C:\a-StudioClassroom\minex20.doc; July 7, 2005
1 Phase Equilibria C:\a-StudioClassroom\minex20.doc; July 7, 2005 S/mole V/mole E/mole J/mol-K cc/mol J/mol grossular 255.5 125.3-6656700 quartz 41.46 22.688-910700 anorthite 199.3 100.79-4243040 wollastonite
More informationESS 312 Geochemistry Lab # 2
ESS 312 Geochemistry Lab # 2 You will have two lab periods to work on this assignment. It is due in lab one week after the second lab period. You may submit your assignment on paper or emailed as single
More informationPetrology. Petrology: the study of rocks, especially aspects such as physical, chemical, spatial and chronoligic. Associated fields include:
Petrology Petrology: the study of rocks, especially aspects such as physical, chemical, spatial and chronoligic. Associated fields include: Petrography: study of description and classification of rocks
More informationCHAPTER 9: INTRODUCTION TO THERMODYNAMICS. Sarah Lambart
CHAPTER 9: INTRODUCTION TO THERMODYNAMICS Sarah Lambart RECAP CHAP. 8: SILICATE MINERALOGY Orthosilicate: islands olivine: solid solution, ie physical properties vary between 2 endmembers: Forsterite (Mg
More informationProblem set: Constructing metamorphic phase diagrams using phase equilibria and the Clausius-Clapeyron equation
Problem set: Constructing metamorphic phase diagrams using phase equilibria and the Clausius-Clapeyron equation Mark Brandriss, Smith College Mineral assemblages preserved in metamorphic rocks record information
More informationFor an incompressible β and k = 0, Equations (6.28) and (6.29) become:
Internal Energy and Entropy as Functions of T and V These are general equations relating the internal energy and entropy of homogeneous fluids of constant composition to temperature and volume. Equation
More informationCHE Thermodynamics of Chemical Processes
CHE 3010 - Thermodynamics of Chemical Processes Venkat Padmanabhan, PhD Department of Chemical Engineering Tennessee Tech University Lecture 2 - Basic Concepts 8/29/2018 CHE 3010 - Thermodynamics Tennessee
More informationPetrology. Petrology: the study of rocks, especially aspects such as physical, chemical, spatial and chronoligic. Classification:
Petrology Petrology: the study of rocks, especially aspects such as physical, chemical, spatial and chronoligic. Associated fields include: Petrography: study of description and classification of rocks
More informationPhysical Chemistry I Exam points
Chemistry 360 Fall 2018 Dr. Jean M. tandard October 17, 2018 Name Physical Chemistry I Exam 2 100 points Note: You must show your work on problems in order to receive full credit for any answers. You must
More informationWhy do we need to study thermodynamics? Examples of practical thermodynamic devices:
Why do we need to study thermodynamics? Knowledge of thermodynamics is required to design any device involving the interchange between heat and work, or the conversion of material to produce heat (combustion).
More informationGibbs Free Energy. Evaluating spontaneity
Gibbs Free Energy Evaluating spontaneity Predicting Spontaneity An increase in entropy; Changing from a more structured to less structured physical state: Solid to liquid Liquid to gas Increase in temperature
More informationGibb s Free Energy. This value represents the maximum amount of useful work (non PV-work) that can be obtained by a system.
Gibb s Free Energy 1. What is Gibb s free energy? What is its symbol? This value represents the maximum amount of useful work (non PV-work) that can be obtained by a system. It is symbolized by G. We only
More informationOCEAN/ESS 410. Class 3. Understanding Conductive Cooling: A Thought Experiment. Write your answers on the exercise sheet
Class 3. Understanding Conductive Cooling: A Thought Experiment Write your answers on the exercise sheet While looking at the global bathymetry maps you will have noticed that mid-ocean ridges or ocean
More informationThermal and compositional structure of the Mantle and Lithosphere
Chapter 1 Thermal and compositional structure of the Mantle and Lithosphere 1.1 Primordial heat of the Earth The most widely accepted planetary formation theory says that the solar system accreted from
More informationChapter Eighteen. Thermodynamics
Chapter Eighteen Thermodynamics 1 Thermodynamics Study of energy changes during observed processes Purpose: To predict spontaneity of a process Spontaneity: Will process go without assistance? Depends
More informationCE 240 Soil Mechanics & Foundations Lecture 7.1. in situ Stresses I (Das, Ch. 8)
CE 240 Soil Mechanics & Foundations Lecture 7.1 in situ Stresses I (Das, Ch. 8) Class Outline Stress tensor, stress units Effective stress, Stresses in saturated soil without seepage Stresses in saturated
More informationIntroduction into thermodynamics
Introduction into thermodynamics Solid-state thermodynamics, J. Majzlan Chemical thermodynamics deals with reactions between substances and species. Mechanical thermodynamics, on the other hand, works
More information2) C 2 H 2 (g) + 2 H 2 (g) ---> C 2 H 6 (g) Information about the substances
Thermochemistry 1) 2 C 4 H 10 (g) + 13 O 2 (g) ------> 8 CO 2 (g) + 10 H 2 O(l) The reaction represented above is spontaneous at 25 C. Assume that all reactants and products are in their standard states.
More informationtom.h.wilson Dept. Geology and Geography West Virginia University Tom Wilson, Department of Geology and Geography
tom.h.wilson tom.wilson@mail.wvu.edu Dept. Geology and Geography West Virginia University Graduation! Mark your calendars. For the day Strain Integration of discontinuous functions Acceleration due to
More informationSUPPLEMENTARY INFORMATION
GSA Data Repository 080 Schorn et al., 08, Thermal buffering in the orogenic crust: Geology, https://doi.org/0.30/g4046.. SUPPLEMENTARY INFORMATION 3 PHASE DIAGRAM MODELING 4 5 6 7 8 9 0 3 4 Phase diagrams
More informationExam 3 Solutions. ClO g. At 200 K and a total pressure of 1.0 bar, the partial pressure ratio for the chlorine-containing compounds is p ClO2
Chemistry 360 Dr. Jean M. Standard Fall 2016 Name KEY Exam 3 Solutions 1.) (14 points) Consider the gas phase decomposition of chlorine dioxide, ClO 2, ClO 2 ( g) ClO ( g) + O ( g). At 200 K and a total
More informationCh. 11: Some problems on density, pressure, etc.
Q3 A pirate in a movie is carrying a chest (0.30 m 0.30 m 0.20 m) that is supposed to be filled with gold. To see how ridiculous this is, determine the mass (in kg) of the gold. Q15 A solid concrete block
More informationChemistry and the material world Unit 4, Lecture 4 Matthias Lein
Chemistry and the material world 123.102 Unit 4, Lecture 4 Matthias Lein Gibbs ree energy Gibbs ree energy to predict the direction o a chemical process. Exergonic and endergonic reactions. Temperature
More informationHomework VII: Mantle Evolution and Heat Flow
1 Revised November 13, 1 EENS 634/434 The Earth Homework VII: Mantle Evolution and Heat Flow 1. Melting events in the mantle can cause fractionation of trace elements. For radiogenic isotopes this is important
More informationChemistry 452 July 23, Enter answers in a Blue Book Examination
Chemistry 45 July 3, 014 Enter answers in a Blue Book Examination Midterm Useful Constants: 1 Newton=1 N= 1 kg m s 1 Joule=1J=1 N m=1 kg m /s 1 Pascal=1Pa=1N m 1atm=10135 Pa 1 bar=10 5 Pa 1L=0.001m 3 Universal
More informationThermodynamics Test Clio Invitational January 26, 2013
Thermodynamics Test Clio Invitational January 26, 2013 School Name: Team Number: Variables specified: s = specific heat C = heat capacity H f = heat of fusion H v = heat of vaporization Given information:
More informationChemical Thermodynamics
Chemical Thermodynamics Reading: Ch 17, sections 1 9 Homework: Chapter 17: 27, 31, 37*, 39*, 41*, 43, 47, 49, 51*, 55, 57*, 59, 63, 71 * = important homework question The Second Law of Thermodynamics -
More informationCHM 112 Chapter 16 Thermodynamics Study Guide
CHM 112 Chapter 16 Thermodynamics Study Guide Remember from Chapter 5: Thermodynamics deals with energy relationships in chemical reactions Know the definitions of system, surroundings, exothermic process,
More informationThe Spring: Hooke s Law and Oscillations
Experiment 10 The Spring: Hooke s Law and Oscillations 10.1 Objectives Investigate how a spring behaves when it is stretched under the influence of an external force. To verify that this behavior is accurately
More informationUNIVERSITY OF TORONTO FACULTY OF APPLIED SCIENCE AND ENGINEERING TERM TEST 2 17 MARCH First Year APS 104S
UNIERSIY OF ORONO Please mark X to indicate your tutorial section. Failure to do so will result in a deduction of 3 marks. U 0 U 0 FACULY OF APPLIED SCIENCE AND ENGINEERING ERM ES 7 MARCH 05 U 03 U 04
More informationThe Gibbs Phase Rule F = 2 + C - P
The Gibbs Phase Rule The phase rule allows one to determine the number of degrees of freedom (F) or variance of a chemical system. This is useful for interpreting phase diagrams. F = 2 + C - P Where F
More informationThermochemistry Chapter 8
Thermochemistry Chapter 8 Thermochemistry First law of thermochemistry: Internal energy of an isolated system is constant; energy cannot be created or destroyed; however, energy can be converted to different
More informationCourse: TDEC202 (Energy II) dflwww.ece.drexel.edu/tdec
Course: TDEC202 (Energy II) Thermodynamics: An Engineering Approach Course Director/Lecturer: Dr. Michael Carchidi Course Website URL dflwww.ece.drexel.edu/tdec 1 Course Textbook Cengel, Yunus A. and Michael
More informationMetamorphism occurs where equi P-T is disturbed
Metamorphism occurs where equi P-T is disturbed Steady-state geotherms are disturbed by a variety of processes including plate-tectonic transport of rocks and heat input by intrusion of magma active transport
More informationIGCSE Double Award Extended Coordinated Science
IGCSE Double Award Extended Coordinated Science Physics 2.1 & 2.2 & 2.3 & 2.4 - Matters and Forces Mass and Weight You need to know what mass and weight are. Mass is the measure of amount of matter in
More informationThe Second Law of Thermodynamics (Chapter 4)
The Second Law of Thermodynamics (Chapter 4) First Law: Energy of universe is constant: ΔE system = - ΔE surroundings Second Law: New variable, S, entropy. Changes in S, ΔS, tell us which processes made
More informationUnit 12. Thermochemistry
Unit 12 Thermochemistry A reaction is spontaneous if it will occur without a continuous input of energy However, it may require an initial input of energy to get it started (activation energy) For Thermochemistry
More informationThermodynamics C Test
Northern Regional: January 19 th, 2019 Thermodynamics C Test Name(s): Team Name: School Name: Team Number: Rank: Score: Science Olympiad North Florida Regional at the University of Florida Thermodynamics
More informationPlease choose the letter corresponding to the best answer to each problem (5 pts each).
Please choose the letter corresponding to the best answer to each problem (5 pts each). 1. A 10-m uniform horizontal beam of weight 75 N is supported by two vertical posts. The left post is at the left
More informationReaction rate. reaction rate describes change in concentration of reactants and products with time -> r = dc j
Reaction rate ChE 400 - Reactive Process Engineering reaction rate describes change in concentration of reactants and products with time -> r = dc j /dt r is proportional to the reactant concentrations
More informationPHYSICS 221, FALL 2010 FINAL EXAM MONDAY, DECEMBER 13, 2010
PHYSICS 221, FALL 2010 FINAL EXAM MONDAY, DECEMBER 13, 2010 Name (printed): Nine-digit ID Number: Section Number: Recitation Instructor: INSTRUCTIONS: i. Put away all materials except for pens, pencils,
More informationMSE 360 Exam 1 Spring Points Total
MSE 360 Exam 1 Spring 011 105 Points otal Name(print) ID number No notes, books, or information stored in calculator memories may be used. he NCSU academic integrity policies apply to this exam. As such,
More informationCH302 Spring 2009 Practice Exam 1 (a fairly easy exam to test basic concepts)
CH302 Spring 2009 Practice Exam 1 (a fairly easy exam to test basic concepts) 1) Complete the following statement: We can expect vapor pressure when the molecules of a liquid are held together by intermolecular
More informationGeological Sciences 4550: Geochemistry
1. a.) Using the enthalpies of formation given in able 2.02, find H in Joules for the reaction: albite jadite + quartz NaAl2Si2O8 NaAl2SiO6+ SiO2 b.) Which assemblage (side of the equation) is stable at
More informationSensible Heat and Enthalpy Calculations
Sensible Heat and Enthalpy Calculations Sensible Heat - The amount of heat that must be added when a substance undergoes a change in temperature from 298 K to an elevated temperature without a change in
More informationPhysics and Chemistry of the Earth and Terrestrial Planets
MIT OpenCourseWare http://ocw.mit.edu 12.002 Physics and Chemistry of the Earth and Terrestrial Planets Fall 2008 For information about citing these materials or our Terms of Use, visit: http://ocw.mit.edu/terms.
More informationSince the coefficients are only determined up to a multiplicative constant, set c 1 1 and solve for the coefficients: c 1 1 c c 3 1
In[1]:= dipole moment of S4 Input interpretation: sulfur tetrafluoride dipole moment Result:.632 D (debyes) Unit conversions: 2.18 1-18 pc m (picocoulomb meters) 2.18 1-21 nc m (nanocoulomb meters) 2.18
More informationCivil Engineering Hydraulics Mechanics of Fluids. Pressure and Fluid Statics. The fastest healing part of the body is the tongue.
Civil Engineering Hydraulics Mechanics of Fluids and Fluid Statics The fastest healing part of the body is the tongue. Common Units 2 In order to be able to discuss and analyze fluid problems we need to
More informationEntropy. Spontaneity. Entropy. Entropy mol of N 2 at 1 atm or 1 mol of N 2 at atm. process a process that occurs without intervention
Entropy Spontaneity process a process that occurs without intervention can be fast or slow Entropy (s) the measure of molecular randomness or disorder Think of entropy as the amount of chaos Entropy Predict
More informationAP CHEMISTRY 2007 SCORING GUIDELINES (Form B)
AP CHEMISTRY 2007 SCORING GUIDELINES (Form B) Question 1 A sample of solid U O 8 is placed in a rigid 1.500 L flask. Chlorine gas, Cl 2 (g), is added, and the flask is heated to 862 C. The equation for
More informationMetamorphic Petrology GLY 262 Metamorphism and plate tectonics
Metamorphic Petrology GLY 262 Metamorphism and plate tectonics Regional Metamorphism in a broad sense: metamorphism that affects a large body of rock, and thus covers a great lateral extent Three principal
More informationExperiment 4. Newton s Second Law. Measure the frictional force on a body on a low-friction air track.
Experiment 4 Newton s Second Law 4.1 Objectives Test the validity of Newton s Second Law. Measure the frictional force on a body on a low-friction air track. 4.2 Introduction Sir Isaac Newton s three laws
More informationCHAPTER THERMODYNAMICS
54 CHAPTER THERMODYNAMICS 1. If ΔH is the change in enthalpy and ΔE the change in internal energy accompanying a gaseous reaction, then ΔHis always greater than ΔE ΔH< ΔE only if the number of moles of
More informationPhysical Oceanography, MSCI 3001 Oceanographic Processes, MSCI Dr. Katrin Meissner Week 5.
Physical Oceanography, MSCI 3001 Oceanographic Processes, MSCI 5004 Dr. Katrin Meissner k.meissner@unsw.e.au Week 5 Ocean Dynamics Transport of Volume, Heat & Salt Flux: Amount of heat, salt or volume
More informationStudent Academic Learning Services Page 1 of 6 Laws about gases
Student Academic Learning Services Page 1 of 6 Laws about gases Charles law Volume is directly proportional to temperature. V = ct, where c > 0 is constant. French balloonist Jacque Charles noticed that
More informationCivil Engineering Hydraulics. Pressure and Fluid Statics
Civil Engineering Hydraulics and Fluid Statics Leonard: It wouldn't kill us to meet new people. Sheldon: For the record, it could kill us to meet new people. Common Units 2 In order to be able to discuss
More informationChapter 19 Chemical Thermodynamics
Chapter 19 Chemical Thermodynamics Spontaneous Processes Entropy and the Second Law of Thermodynamics The Molecular Interpretation of Entropy Entropy Changes in Chemical Reactions Gibbs Free Energy Free
More informationCONCEPTS AND DEFINITIONS. Prepared by Engr. John Paul Timola
CONCEPTS AND DEFINITIONS Prepared by Engr. John Paul Timola ENGINEERING THERMODYNAMICS Science that involves design and analysis of devices and systems for energy conversion Deals with heat and work and
More informationThermodynamics System Surrounding Boundary State, Property Process Quasi Actual Equilibrium English
Session-1 Thermodynamics: An Overview System, Surrounding and Boundary State, Property and Process Quasi and Actual Equilibrium SI and English Units Thermodynamic Properties 1 Thermodynamics, An Overview
More informationLab 8: Gravity and Isostasy (35 points)
it's not the most important thing in your life right now. But what is important is gravity. Arnold Schwarzenegger as Colonel John Matrix, Commando (Check out this classic of American cinema!) Lab 8: Gravity
More informationThermodynamics. Thermodynamics of Chemical Reactions. Enthalpy change
Thermodynamics 1 st law (Cons of Energy) Deals with changes in energy Energy in chemical systems Total energy of an isolated system is constant Total energy = Potential energy + kinetic energy E p mgh
More informationChapter 1 Introduction
Fundamentals of Thermodynamics Chapter 1 Introduction Prof. Siyoung Jeong Thermodynamics I MEE2022-01 Thermodynamics : Science of energy and entropy - Science of heat and work and properties related to
More informationSupporting Information: On Localized Vapor Pressure Gradients Governing Condensation and Frost Phenomena
Supporting Information: On Localized Vapor Pressure Gradients Governing Condensation and Frost Phenomena Saurabh Nath and Jonathan B. Boreyko Department of Biomedical Engineering and Mechanics, Virginia
More informationHomework Problem Set 8 Solutions
Chemistry 360 Dr. Jean M. Standard Homework roblem Set 8 Solutions. Starting from G = H S, derive the fundamental equation for G. o begin, we take the differential of G, dg = dh d( S) = dh ds Sd. Next,
More informationLecture 2: Causes of metamorphism
Lecture 2: Causes of metamorphism Metamorphism refers to a suite of processes that change the mineralogy, composition and texture of pre-existing materials this is a broad definition and certain industrial
More informationThe underlying prerequisite to the application of thermodynamic principles to natural systems is that the system under consideration should be at equilibrium. http://eps.mcgill.ca/~courses/c220/ Reversible
More informationChapter 10 Lecture Notes: Thermodynamics
Chapter 10 Lecture Notes: Thermodynamics During this unit of study, we will cover three main areas. A lot of this information is NOT included in your text book, which is a shame. Therefore, the notes you
More informationSensible Heat and Enthalpy Calculations
* Sensible Heat and Enthalpy Calculations Sensible Heat - The amount of heat that must be added when a substance undergoes a change in temperature from 298 K to an elevated temperature without a change
More informationChapter 8 Phase Diagram, Relative Stability of Solid, Liquid, and Gas
Chapter 8 Phase Diagram, Relative Stability of Solid, Liquid, and Gas Three states of matter: solid, liquid, gas (plasma) At low T: Solid is most stable. At high T: liquid or gas is most stable. Ex: Most
More informationChapter 19 Chemical Thermodynamics Entropy and free energy
Chapter 19 Chemical Thermodynamics Entropy and free energy Learning goals and key skills: Explain and apply the terms spontaneous process, reversible process, irreversible process, and isothermal process.
More informationEAS 4550: Geochemistry Prelim Solutions October 13, 2017
Name Key Part I Construct a pe-ph diagram for the manganese aqueous species and solids (denoted with subscript s) at 0.1 MPa and 298 K. Use the adjacent thermodynamic data. You may assume that solid phases
More informationForce and Acceleration in Circular Motion
Force and Acceleration in Circular Motion INTRODUCTION Acceleration is the time rate of change of velocity. Since velocity is a vector, it can change in two ways: its magnitude can change and its direction
More informationImpact-driven subduction on the Hadean Earth
In the format provided by the authors and unedited. SUPPLEMENTARY INFORMATION DOI: 10.1038/NGEO3029 Impact-driven subduction on the Hadean Earth C. O Neill, S. Marchi, S. Zhang and W. Bottke NATURE GEOSCIENCE
More informationBasics of Thermodynamics: Easy learning by Dr. Anjana Sen
Basics of Thermodynamics: Easy learning by Dr. Anjana Sen Part 1: Theory and concept Part 2: Definitions and equations Part 3: Laws of Thermodynamics Part 1: theory and concept Thermodynamics means conversion
More informationChapter 19 Chemical Thermodynamics
Chapter 19 Chemical Thermodynamics Kinetics How fast a rxn. proceeds Equilibrium How far a rxn proceeds towards completion Thermodynamics Study of energy relationships & changes which occur during chemical
More informationChemical Thermodynamics
Page III-16-1 / Chapter Sixteen Lecture Notes Chemical Thermodynamics Thermodynamics and Kinetics Chapter 16 Chemistry 223 Professor Michael Russell How to predict if a reaction can occur, given enough
More informationTable of Contents Lecture Topic Slides
Mechanics 100 Table of Contents ecture Topic Slides 1 Fundamental Concepts 4 12 2 Force Vectors 14-20 3 Equilibrium Of Particles 22-26 4 Force Resultants 28-38 5 Equilibrium Of Rigid Bodies 40-52 6 Structural
More informationChemistry 360 Spring 2017 Dr. Jean M. Standard April 19, Exam points
Chemistry 360 pring 2017 Dr. Jean M. tandard April 19, 2017 Name Exam 3 100 points Note: You must show your work on problems in order to receive full credit for any answers. You must turn in your equation
More informationThermodynamics: Free Energy and Entropy. Suggested Reading: Chapter 19
Thermodynamics: Free Energy and Entropy Suggested Reading: Chapter 19 System and Surroundings System: An object or collection of objects being studied. Surroundings: Everything outside of the system. the
More informationWorksheet 5.2. Chapter 5: Energetics fast facts
Worksheet 52 Chapter 5: Energetics fast facts 51 Exothermic and endothermic reactions Energetics deals with heat changes in chemical reactions Enthalpy is the amount of heat energy contained in a substance
More informationThe Spring: Hooke s Law and Oscillations
Experiment 7 The Spring: Hooke s Law and Oscillations 7.1 Objectives Investigate how a spring behaves when it is stretched under the influence of an external force. To verify that this behavior is accurately
More information3.012 PS 7 Thermo solutions Issued: Fall 2003 Graded problems due:
3.012 PS 7 Thermo solutions 3.012 Issued: 11.17.03 Fall 2003 Graded problems due: 11.26.03 Graded problems: 1. Analysis of equilibrium phases with a binary phase diagram. Shown below is the phase diagram
More informationEngineering Thermodynamics
David Ng Summer 2017 Contents 1 July 5, 2017 3 1.1 Thermodynamics................................ 3 2 July 7, 2017 3 2.1 Properties.................................... 3 3 July 10, 2017 4 3.1 Systems.....................................
More informationCHAPTER 4 Physical Transformations of Pure Substances.
I. Generalities. CHAPTER 4 Physical Transformations of Pure Substances. A. Definitions: 1. A phase of a substance is a form of matter that is uniform throughout in chemical composition and physical state.
More informationconcentrations (molarity) rate constant, (k), depends on size, speed, kind of molecule, temperature, etc.
#80 Notes Ch. 12, 13, 16, 17 Rates, Equilibriums, Energies Ch. 12 I. Reaction Rates NO 2(g) + CO (g) NO (g) + CO 2(g) Rate is defined in terms of the rate of disappearance of one of the reactants, but
More informationPhysics 6b Winter 2015 Midterm Test Form D
Physics 6b Winter 2015 Midterm Test Form D Fill out name and perm number on the scantron. Do not forget to bubble in the Test Form (A, B, C, or, D). At the end, only turn in the scantron. Keep questions/cheat
More informationPhysics 6b Winter 2015 Midterm Test Form B
Physics 6b Winter 2015 Midterm Test Form B Fill out name and perm number on the scantron. Do not forget to bubble in the Test Form (A, B, C, or, D). At the end, only turn in the scantron. Keep questions/cheat
More informationPhysics 6b Winter 2015 Midterm Test Form C
Physics 6b Winter 2015 Midterm Test Form C Fill out name and perm number on the scantron. Do not forget to bubble in the Test Form (A, B, C, or, D). At the end, only turn in the scantron. Keep questions/cheat
More informationPhysics 6b Winter 2015 Midterm Test Form A
Physics 6b Winter 2015 Midterm Test Form A Fill out name and perm number on the scantron. Do not forget to bubble in the Test Form (A, B, C, or, D). At the end, only turn in the scantron. Keep questions/cheat
More informationExercise 1: Vertical structure of the lower troposphere
EARTH SCIENCES SCIENTIFIC BACKGROUND ASSESSMENT Exercise 1: Vertical structure of the lower troposphere In this exercise we will describe the vertical thermal structure of the Earth atmosphere in its lower
More informationConsider a volume Ω enclosing a mass M and bounded by a surface δω. d dt. q n ds. The Work done by the body on the surroundings is
The Energy Balance Consider a volume enclosing a mass M and bounded by a surface δ. δ At a point x, the density is ρ, the local velocity is v, and the local Energy density is U. U v The rate of change
More informationS A 0.6. Units of J/mol K S U /N
Solutions to Problem Set 5 Exercise 2. Consider heating a body A, of constant heat capacity J/ C and initially at temperature K, to a nal temperature of 2K. The heating takes place by sequentially placing
More information