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Unformatted text preview: 2. (4pt) For each of the following statements, indicate whether it is true or false a) T or F A spontaneous reaction always releases heat b) T or F The entropy of a system always increases for a spontaneous change c) T or F The entropy of a system and its surroundings always increases for a spontaneous change d) T or F The energy of a system always increases for a spontaneous change 3. (3pt) When liquid CCl 4 evaporates, it absorbs 30.0 kJ/mol of heat at 27 ° C. Calculate the change in entropy, ∆ S. ∆ S sys = (30.0 kJ/mol )/ 300 K = +100 J/mol K or ∆ S surr = -(30.0 kJ/mol )/ 300 K = -100 J/mol K...
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This note was uploaded on 04/12/2008 for the course CHEM 152 taught by Professor Chiu during the Winter '08 term at University of Washington.
- Winter '08