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Unformatted text preview: Li (sl7433) HW13 Tsoi (58020) 1 This printout should have 20 questions. Multiplechoice questions may continue on the next column or page find all choices before answering. 001 (part 1 of 2) 10.0 points A piece of metal with a mass of 1 . 2 kg, specific heat of 201 J / kg / C, and initial temperature of 93 C is dropped into an insulated jar that contains liquid with a mass of 3 kg, specific heat of 1000 J / kg / C, and initial temperature of 1 C. The piece of metal is removed after 2 . 4 s, at which time its temperature is 17 C. Find the temperature of the liquid after the metal is removed in C. Neglect any effects of heat transfer to the air or to the insulated jar. Answer in units of C. 002 (part 2 of 2) 10.0 points Find the average rate at which heat is trans ferred while the piece of metal is in the liquid. Answer in units of J / s. 003 (part 1 of 3) 10.0 points A cylinder contains a mixture of helium and argon gas in equilibrium at a temperature of 118 C. Boltzmanns constant is 1 . 38066 10 23 J / K, and Avogadros number is 6 . 02 10 23 mol 1 ....
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This note was uploaded on 02/18/2010 for the course PHYSICS 2 taught by Professor Ditmire during the Spring '09 term at University of Texas at Austin.
 Spring '09
 Ditmire
 Physics, Mass, Heat

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