HW12-G1-Liq-Sol - Exercise Set 12 LIQUIDS and SOLIDS CHM...

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Exercise Set 12 LIQUIDS and SOLIDS CHM 2045 HW12-G1-Liq-Sol-PDF.wpd 1. a) List the three states of matter in order of increasing intermolecular associations. b) List the three states of matter in order of increasing molecular disorder. c) Explain why the formation of solids and liquids is favored by high pressures and low temperatures. Liquid State 2. Will a substance with strong intermolecular attractions have a) a high or a low vapor pressure? b) a high or low boiling point? c) a high or low heat of vaporization? 3. Explain, using a Maxwell-Boltzmann distribution curve, why an evaporating liquid becomes cool. 4. Explain why the entropy of vaporization of a compound is larger than the entropy of fusion of that compound. 5. At its normal boiling point the value of ) V vap of chloroform, CHCl 3 , is 247 J/g. a) What mass of CHCl 3 , in grams, can be vaporized with 4.23 kJ of heat? b) What is the ) H vap of CHCl 3 , expressed in kJ/mol? c) How much heat, in kJ, is evolved when 16.2 g CHCl 3 (g) condenses? 6.
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This note was uploaded on 11/16/2011 for the course CHM 2045 taught by Professor Mitchell during the Fall '07 term at University of Florida.

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HW12-G1-Liq-Sol - Exercise Set 12 LIQUIDS and SOLIDS CHM...

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