01 2005.09.25

01 2005.09.25 - Physics 122 Exam I Name Section 1 To cool...

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Physics 122 9/23/05 Exam I Name_________________________________ Section______________ Page 1 of 5 1. To cool your 500 ml (500 g) soda that’s at 20 ° C, you add 100 g of ice at 0 ° C. (Ignore heat transfer to the container or to the environment. For both soda and water, use a specific heat of 4.0 × 10 3 J/kg K. The latent heat of fusion of ice is 3.3 × 10 5 J/kg.) a. Determine whether or not all of the ice melts. Support your response with appropriate calculations.(6) b. If all of the ice melts, determine the final temperature of your drink. (Accuracy to the nearest degree is fine.) If not, determine how much of the ice is left, to the nearest gram. (9)
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Physics 122 9/23/05 Exam I Name_________________________________ Section______________ Page 2 of 5 2. A cylinder fitted with a movable piston contains an ideal diatomic gas at a temperature of 300 K. The initial volume of the gas is 0.050 m 3 and the initial pressure is 1.0 × 10 5 Pa. The gas undergoes an adiabatic compression to a volume of 0.010 m
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01 2005.09.25 - Physics 122 Exam I Name Section 1 To cool...

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