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Unformatted text preview: 1 The quiz next week will be given during your recitation. It will cover material starting with section 10.7. First Midquarter Exam Monday, Jan 29 6:30-7:48 pm Rooms TBA Chaps 10, 11, 13 Dr. Zellmers web site has very useful information on BP data and the use of Excel for Exps. 13 and 17. 11.5 Vapor Pressure Explaining Vapor Pressure on the Molecular Level, Volatility, Vapor Pressure, and Temperature; Vapor Pressure and Boiling Point 11.6 Phase Diagrams The Phase Diagrams of H 2 O and CO 2 11.7 Structures of Solids Unit Cells The Crystal Structure of Sodium Chloride Close Packing of Spheres 11.8 Bonding in Solids Molecular Solids Covalent-Network Solids Ionic Solids Metallic Solids Chapter 13 Properties of Solutions 13.1 The Solution Process Energy Changes and Solution Formation Solution Formation, Spontaneity, and Disorder Solution Formation and Chemical Reactions (Add slide of C-C eq and plot.) But, recall, we always prefer straight lines! ln P H R T C vap vap = + 1 Temp. increases Or with P the vapor pressureat T and P the vapor pressureat T P H R T C and P H R T C subtract to give P P H R T T or P P H R T T vap vap vap vap , ln ln ln ln ln 1 1 2 2 2 2 1 1 2 1 2 1 2 1 2 1 1 1 1 1 1 1 = + = + = = Using the Clausius-Clapeyron Equation: Tabulate P in atm and T in K; Calculate lnP and 1/T Plot lnP vs 1/T The slope is = - H vap /R The slope! Phase Diagrams 2 The Critical Point: 11.55 The normal melting and boiling points of xenon are -112 o C and -107 o C, respectively. Its triple point is at-121 o C and 282 torr, and its critical point is a 16.6 o C and 57.6 atm....
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This note was uploaded on 07/17/2008 for the course CHEM 122 taught by Professor Zellmer during the Winter '07 term at Ohio State.
- Winter '07