A Refrigerator Keeps Food in the Freezer Portion at −15°C

question 61

Multiple Choice

A refrigerator keeps food in the freezer portion at −15°C and dumps excess heat into the kitchen, whose temperature is 20°C. If the refrigerator has half the coefficient of performance of an ideal reversible refrigerator, what is the refrigerator's coefficient of performance under these conditions?

• A) 1.1
• B) 4.2
• C) 2.0
• D) 3.7

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