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Coefficient of performance of an air conditioner

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An air conditioner maintains a room at 70 degrees F (294.3K) when the outdoors temperature is 90 degrees F (305.4K). If its actual coefficient of performance, K, is half that of an ideal Carnot refrigerator, what is the value of K?

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Coefficient of performance of Carnot refrigerator = Tc / (Th -Tc)
Tc=294.3 ...

Solution Summary

The expert calculates coefficient of performance of an air conditioner.