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CHEM 301 HW10 - Ramirez Josue Raul Homework 10 Due Dec 7...

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Ramirez, Josue Raul – 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 can’t unscramble an egg” might be a layman’s view of 1. the second law of thermodynamics. 2. the woeful lament of a student contem- plating checking his work on an exam. 3. the first law of thermodynamics. 4. the third law of thermodynamics. 002 (part 1 of 1) 10 points Which substance has the higher molar en- tropy? 1. KCl(aq) at 298 K and 1.00 atm 2. Unable to determine 3. They are the same 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 the photosynthesis of glucose: 6 CO 2 (g) + 6 H 2 O( ) C 6 H 12 O 6 (s) + 6 O 2 (g) 1. The entropy does not change. 2. Unable to determine 3. increases 4. decreases 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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