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16_InstSolManual_PDF_Part8 - 16-8 Chapter 16 16.32 Set Up...

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16.32. Set Up: where is the heat flow of 125 J each second. This heat flows into the factory air at a temperature of The heat flows out of the furnace at a temperature of Solve: The operation of the furnace causes the entropy of the factory to increase. 16.33. Set Up: The reversible process that connects the same initial and final states is an isothermal expansion at from to For an isothermal expansion of an ideal gas and Solve: (a) (b) The isolated system has so the process is irreversible. Reflect: The reverse process, where all the gas in 35.0 L goes through the hole and into the tank doesn’t occur. 16.34. Set Up: Heat with comes out of the hot water at and goes into the cold water at Solve: (a) (b) The isolated system has so the process is irreversible. 16.35. Set Up: For each change in temperature the magnitude of the heat flow for each 0.500 kg of water is Since the amounts of water are the same, when one 0.500 kg warms the other cools The final temperature of the mixture is Use for each change. Heat flows out of the warmer water and into the cooler water. Solve: and and and The total entropy change is 16.36. Set Up: For an isothermal process of an ideal gas, and For a compression, and Solve: D S 5 2 1850 J 293 K 5 2 6.31 J
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