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Which limitation affects heat extraction efficiency in a Carnot engine operating in a refrigeration cycle with minimal temperature differential?

A)Infinite time for heat transfer
B)Increased entropy within the compressor
C)Reduced refrigerant flow rate needed
D)Decreased energy input for condensation

💡 Explanation

Maintaining a minimal temperature difference in a Carnot refrigeration cycle leads to quasi-static processes, where reversible isothermal steps necessitate infinitesimally slow heat transfer because the driving force approaches zero, thereby requiring infinite time, rather than enhanced efficiency, therefore limiting practical implementation.

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