CH 301 hw12 - cha (dyc97) Homework 12 Sutcliffe (53770) 1...

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Unformatted text preview: cha (dyc97) Homework 12 Sutcliffe (53770) 1 This print-out should have 16 questions. Multiple-choice questions may continue on the next column or page find all choices before answering. 001 10.0 points A friend says that as a plant grows and takes an unordered set of molecules and puts them in a highly organized system the second law of thermodynamics is violated. Your best response is that 1. while the entropy involved in the plant growth decreased, the entropy in the universe increased as a result of this process. 2. the plant is not at equilibrium and hence the argument is invalid. 3. you must be thinking of the third law. 4. the second law applies only to chemical systems and not biological systems. 002 10.0 points For which of the following processes does the entropy of the universe decrease? 1. None of these is correct. 2. freezing one mole of water to ice at 0 C and then cooling it to- 10 C 3. freezing one mole of water to ice at 0 C 4. freezing one mole of water to ice at- 10 C 5. melting one mole of ice to water at 0 C 003 10.0 points Ammonium nitrate absorbs 26 kJ/mole of heat when it is dissolved in water. Why does this compound readily dissolve in water? 1. The resulting entropy increase in the sys- tem more than offsets the entropy decrease in the surroundings. 2. As long as the temperature of the sur- roundings is sufficiently high to provide the required energy there is no reason why it shouldnt dissolve....
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CH 301 hw12 - cha (dyc97) Homework 12 Sutcliffe (53770) 1...

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