A Carnot heat engine operates between temperatures Th and

Chapter 22, Problem 26

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A Carnot heat engine operates between temperatures Th and Tc. (a) If Th 5 500 K and Tc 5 350 K, what is the efficiency of the engine? (b) What is the change in its efficiency for each degree of increase in Th above 500 K? (c) What is the change in its efficiency for each degree of change in Tc? (d) Does the answer to part (c) depend on Tc? Explain.

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