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← ScienceWhich constraint impacts a refrigerator's efficiency during its operational cycle?
A)Compressor back-pressure limits net work✓
B)Expansion valve precisely controls superheat
C)Evaporator volume hinders heat absorption
D)Condenser thermal mass delays heat release
💡 Explanation
Compressor back-pressure increases because excessive pressure requires more energy for compression; therefore the cycle becomes less efficient because the increased work demand reduces net cooling, rather than other throttling losses.
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