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Which outcome impairs a reverse Brayton cycle's coefficient of performance?

A)Increased compressor discharge temperature
B)Isentropic turbine expansion completion
C)Use of low pressure coolant
D)Complete heat exchanger functionality

💡 Explanation

The isentropic compressor's efficiency decreases with temperature rises, triggering irreversibilities. This reduces the refrigeration effect because the compressor needs more work, therefore COP drops, rather than alternative processes being impaired which would improve the process.

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