CHAPTER 10 LIQUID & SOLIDS
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1 Advanced Chemistry Name Hour Advanced Chemistry Approximate Timeline Students are expected to keep up with class work when absent. CHAPTER 10 LIQUID & SOLIDS Day Plans for the day Assignment(s) for the day 10.1 Intermolecular Forces Assignment 10.0 o Dipole Forces 1 Assignment 10.1 o Hydrogen Bonding Read section(s) o London Dispersion Forces 10.2 The Liquid State o Surface Tension Assignment 10.2 Read section(s) 10.8 o Capillary Action o Viscosity 10.3 An Introduction to Structures & Types of Solids 2 o Crystalline v Amorphous 10.4 Structure & Bonding in Metals 10.5 Network Atomic Solids o General Properties 10.6 Molecular Solids o General Properties 10.7 Ionic Solids o General Properties 10.8 Vapor Pressure & Changes of Read section(s) State o Equilibrium o The Clausius-Clapyron Equation 10.8 Vapor Pressure & Changes of Assignment 10.3 State o Changes of State Phase Diagrams o Normal Boiling Point/Melting Point o Triple Point o Critical Temperature/Pressure 5 Work on assignment 6 Grade & discuss assignment Review for chapter 10 Test 7 Chapter 10 Test Read section(s) 11.1
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3 Advanced Chemistry Name Hour Study Guides Chapter 10 Quizzes Advanced Chemistry Quiz 10.1 Intermolecular Forces 1. List the three types of intermolecular forces in decreasing order of strength. 2. Identify the type of intermolecular forces present between molecules of a compound. Quiz Types of Solids 1. Know the general properties of a. network atomic solids b. molecular solids c. ionic solids 2. Give examples of a. network atomic solids b. molecular solids c. ionic solids Quiz 10.8 Vapor Pressure & Equilibrium 1. Understand chemical equilibrium 2. Understand vapor pressure 3. Calculate vapor pressure or boiling point using the Clausius-Clapyron equation. Quiz 10.9 Changes of State 1. Understand what happens when a substance absorbs heat and progresses through all three state of matter. 2. Label an energy diagram. 3. Labe a phase diagram.
4 Study Guide Chapter 10 Test Advanced Chemistry At the completion of chapter 10 you should 1. Know the definitions of the following terms. a. Intermolecular Forces b. Dipole Forces c. Hydrogen Bonding d. London Dispersion Forces e. Surface Tension f. Capillary Action g. Viscosity h. Crystalline Solid i. Amorphous Solid j. Heat of Vaporization k. Heat of Fusion l. Equilibrium m. Boiling Point n. Melting Point 2. Be able to identify the type of intermolecular forces holding molecules together. 3. Understand the difference between network atomic solids, molecular solids, and ionic solids. 4. Know the general properties of network atomic solids, molecular solids, and ionic solids. 5. Understand the equilibrium process. 6. Use the Clausius-Clapyron equation to solve for vapor pressure, temperature and heat of vaporization. 7. Understand what happens when a solid substance is heated through its boiling point. 8. Be able to interpret phase diagrams.
5 Advanced Chemistry Name Hour Assignment 10.0 Vocabulary Define each of the following terms. 1. Intermolecular Forces 2. Dipole Forces 3. Hydrogen Bonding 4. London Dispersion Forces 5. Surface Tension 6. Capillary Action 7. Viscosity 8. Crystalline Solid 9. Amorphous Solid 10. Heat of Vaporization
6 11. Heat of Fusion 12. Equilibrium 13. Boiling Point 14. Melting Point
7 Advanced Chemistry Name Hour Assignment Questions 1) The nonpolar hydrocarbon C 25 H 52 is a solid at room temperature. Its boiling point is greater than 400 C. Which has stronger intermolecular forces, C 25 H 52 or H 2 O? Explain your answer? 2) When a person has a severe fever, one therapy used to reduce the fever is an alcohol rub. Explain how the evaporation of alcohol from a person s skin removes heat energy from the body. 3) Why is a burn from steam typically much more severe than a burn from boiling water?
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9 Advanced Chemistry Name Hour Assignment 10.2 Intermolecular Forces and Physical Properties 1) Identify the most important types of inter-particle forces present in the solids of each of the following substances. A) Ar B) HCl C) HF D) CaCl 2 E) CH 4 F) CO G) NaNO 3 2) Consider the compounds Cl 2, HCl, F 2, NaF, and HF. Which compound has a boiling point closest to that of argon? Explain. 3) Consider the following compounds and formulas. (Note: the formulas are written in such a way as to give you an idea of the structure.) ethanol: CH 3 CH 2 OH dimethyl ether: CH 3 OCH 3 propane: CH 3 CH 2 CH 3 The boiling points of these compounds are (in no particular order) C, -23 C, and 78.5 C. Match the boiling points to the correct compounds.
10 4) In each of the following groups of substances, pick the one that has the given property. Justify each answer. A) highest boiling point: CCl 4, CF 4, CBr 4 B) lowest freezing point: LiF, F 2, HCl C) smallest vapor pressure at 25 C: CH 3 CH 2 OH, CH 3 OCH 3, CH 3 CH 2 CH 3 D) greatest viscosity: H 2 S, HF, H 2 O E) greatest heat of vaporization: H 2 CO, CH 3 CH 3, CH 4 F) smallest enthalpy of fusion: I 2, CsBr, CaO
11 Advanced Chemistry Name Hour Assignment 10.3 Phase Changes & Phase Diagrams 1) From the following data for liquid nitric acid, determine its heat of vaporization and normal boiling point. Temperature ( C) Vapor Pressure (mm Hg) ) In Breckenridge, Colorado, the typical atmospheric pressure is 520 torr. What is the boiling point of water (ΔH vap = 40.7 kj/mol) in Breckenridge? 3) What pressure would have to be applied to steam at 350. C to condense the steam to liquid water? ΔH vap = 40.7 kj/mol
12 4) Carbon tetrachloride, CCl 4, has a vapor pressure os 213 torr at 40. C and 836 torr at 80 C. What is the normal boiling point of CCl 4? 5) Consider the phase diagram given below. What phases are present at points A though H? Identify the triple point, normal boiling point, normal freezing point, and critical point. Which phase is denser, solid or liquid? H A B G 1 atm E F C D
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