# Quiz 6 - Version 101 Quiz 6 Laude (53755) This print-out...

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Version 101 – Quiz 6 – Laude – (53755) 1 This print-out should have 8 questions. Multiple-choice questions may continue on the next column or page – fnd all choices beFore answering. 001 5.0 points IF a given system releases 900 J oF heat, what will Δ S oF the surroundings be iF this takes place at 27 C? 1. - 33 . 3 J · K 1 2. 3 J · K 1 correct 3. - 3 J · K 1 4. 33 . 3 J · K 1 Explanation: Heat released by the system will increase the entropy oF the surroundings by an amount equal to q/T , in this case 900 J 300 K = 3 J · K 1 . 002 5.0 points Rank the Following systems in terms oF in- creasing entropy: a) 1 mol oF pure ice b) 1 mol oF water with 1 mol oF salt dissolved in it. c) 1 mol oF pure water 1. b < a < c 2. a < c < b correct 3. a < b < c 4. c < a < b 5. b < c < a 6. c < b < a Explanation: Entropy increases as systems go through endothermic phase transitions and when there is more matter or more dispersed matter present. 003 5.0 points IF you had 1 mole oF H± molecules, each oF which had two possible orientations, what would their total theoretical positional en-

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## This note was uploaded on 06/06/2010 for the course CH 301 taught by Professor Fakhreddine/lyon during the Fall '07 term at University of Texas at Austin.

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Quiz 6 - Version 101 Quiz 6 Laude (53755) This print-out...

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