16_InstSolManual_PDF_Part9

16_InstSolManual_PDF_Part9 - The Second Law of...

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16.37. Set Up: leaves the environment at enters the environment at Solve: For a distance of 1.0 mi the car uses For 0.0286 gal, The net entropy change of the environment is positive. 16.38. Set Up: We are asked to find the entropy change of the person. The person is not an isolated system. In 1.0 s, of heat enters the person’s body at This amount of heat leaves the person at a temperature of Solve: For the person, The entropy of the person can decrease without violating the second law of thermodynamics because the person isn’t an isolated system. 16.39. Set Up: The heat enters the person’s body at and leaves at a temperature of Solve: Your body’s entropy decreases. Reflect: The entropy of your body can decrease without violating the second law of thermodynamics because you are not an isolated system. 16.40. Set Up and Solve: 16.41. Set Up: The power incident on the collector is where A is the area of the collector. The incident power times the efficiency must equal the power output of 2500 MW. Solve: (a)
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This note was uploaded on 03/06/2009 for the course PHYS 114 taught by Professor Shoberg during the Spring '07 term at Pittsburg State Uiversity.

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