A vapor-compression refrigeration unit uses r-22 and has an, Ask an Expert

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A vapor-compression refrigeration unit uses R-22 and has an isentropic efficiency of 88.0% when working between the temperature limits of -20.0°F and 80.0°F.

The refrigerant enters the condenser as a saturated vapor and exits as a saturated liquid. Determine the coefficient of performance (COP) of this unit.

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