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Unformatted text preview: Marek, Erin Homework 10 Due: Dec 7 2007, 11:00 pm Inst: Brodbelt 1 This print-out should have 15 questions. Multiple-choice questions may continue on the next column or page find all choices before answering. The due time is Central time. Brodbelt CH301 HW 10 Due December 7, 11:00 pm 001 (part 1 of 1) 10 points You cant unscramble an egg might be a laymans view of 1. the first law of thermodynamics. 2. the woeful lament of a student contem- plating checking his work on an exam. 3. the third law of thermodynamics. 4. the second law of thermodynamics. 002 (part 1 of 1) 10 points Which substance has the higher molar en- tropy? 1. Unable to determine 2. They are the same 3. KCl(aq) at 298 K and 1.00 atm 4. KCl(s) at 298 K and 1.00 atm 003 (part 1 of 1) 10 points Without performing any calculations, de- termine whether the entropy of the system increases or decreases in SO 2 (g) + Br 2 (g) + 2H 2 O( ) H 2 SO 4 (aq) + 2HBr(aq) 1. Unable to determine 2. increases 3. decreases 4. The entropy does not change. 004 (part 1 of 1) 10 points The temperature of 2.00 mol Ne(g) is in- creased from 25 C to 200 C at constant pres- sure. Assume the heat capacity of Ne is 20.8 J/K-mol. Calculate the change in the entropy of neon. Assume ideal behavior....
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- Fall '07