A 1.00-mol sample of an ideal monatomic gas is taken through the cycle shown in Figure. The process A → B is a reversible isothermal expansion. Calculate (a) the efficiency of the cycle and (b) explain how the efficiency compares with that of a Carnot engine operating between the same temperature extremes.

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Q: 4

A: Apply ideal gas equation for the processes 2-3 and 1-4.

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A: The following question can be solved as follows

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