Fall 07 HW10 solution - Homework Assignment#10 Name...

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Homework Assignment #10 Name____________________________ Laboratory Section (circle one) MW1.30 MW6.30 TTh7 1. Chapter 12, Problem 2, 6, 9, 11, 15, 22, 26, 33, 50, 52, 55, 68 12.2 a) intermolecular b) intermolecular c) intermolecular d) intramolecular 12.6 a) intermolecular b) intramolecular c) intermolecular d) intermolecular 12.9 The propane gas molecules slow down as the gas is compressed. Therefore, much of the kinetic energy lost by the propane molecules is released to the surroundings upon liquefaction. 12.11 The gaseous PCl 3 molecules are moving faster, and are farther apart than, the liquid molecules. As they condense, the kinetic energy of the molecules is changed into potential energy stored in the dipole- dipole interactions between the molecules. 12.15 No , at 1.1 atm, water boils at a temperature above 100° C, since it is more difficult for gas molecules to escape the liquid when the applied pressure is greater. 12.22 The Clausius-Clapeyron equation gives the relationship between vapor pressure and temperature.
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