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← ScienceWhich limitation arises when a refrigerator approaches Carnot efficiency?
A)Infinite heat transfer required.✓
B)Compressor material fatigue accelerates.
C)Refrigerant spontaneously phase separates.
D)Evaporator coil ices prematurely.
💡 Explanation
Reaching Carnot efficiency requires infinitely slow, reversible processes. Heat transfer through a finite temperature difference inherently involves irreversibility; therefore, approaching ideal Carnot efficiency requires an increasingly large (approaching infinity) heat transfer area and/or cycle time, rather than material failures.
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