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Question: You are designing a Carnot engine that has 2 mol of CO2 as its working substance; the gas may be treated as ideal. The gas is to have a maximum temperature of 527oC and a maximum pressure of 5.00 atm. With a heat input of 400 J per cycle, you want 300 J of useful work.

Part A: Find the temperature of the cold reservoir.

Part B: For how many cycles must this engine run to melt completely a 10.0-kg block of ice originally at 0.0oC, using only the heat rejected by the engine?

Please, try to give explanation. Thanks.

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