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Unformatted text preview: Version 061/AADDB Quiz 2 Enthalpy lyon (51900) 1 This print-out should have 10 questions. Multiple-choice questions may continue on the next column or page find all choices before answering. 1 2 3 4 5 6 7 AA AB AC AD BA BB BC 8 9 10 BACK NEXT BD CA CB CC CD Blue = correct answer; Red = incorrect an- swer; Greenish-brown = already answered; the letter E = enter. You must press CD then E to move to the next question. 001 10.0 points A 100 g sample of a liquid with a specific heat of 2 J / g C absorbs 4000 J of heat energy. If the sample started at 30 C , what is the final temperature? No phase change took place. 1. 20 C 2. 98 C 3. 31 C 4. 80 C 5. 50 C correct Explanation: 002 10.0 points Which of the following is NOT an intensive property of a pure substance? 1. specific heat 2. heat capacity correct 3. density 4. temperature 5. color Explanation: 003 10.0 points A calorimeter 1. is only useful in measuring exothermic reactions. 2. is equal to the molar enthalpy of reac- tion. 3. is an indicator of spontaneity. 4. is a device used to measure the transfer of heat energy. correct 5. is a dieting aid. Explanation: A calorimeter is a device used to measure the transfer of heat energy, whether endother- mic or exothermic....
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This note was uploaded on 01/29/2012 for the course CH 302 taught by Professor Holcombe during the Spring '07 term at University of Texas at Austin.
- Spring '07