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Which constraint minimizes achieved work implementing a Carnot cycle?

A)Large temperature difference between reservoirs
B)Irreversible heat transfer to cylinder
C)Fast speed in compression strokes
D)High thermal reservoir temperature range

💡 Explanation

Irreversible heat transfer degrades the Carnot efficiency because the process deviates from the ideal isothermal and adiabatic conditions; therefore, less work is extracted, rather than more, thanks to lost energy during real-world conduction.

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