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An Refrigerator Keeps Food in the Freezer Portion at -15 ∘^{\circ}

Question 1

Multiple Choice

An refrigerator keeps food in the freezer portion at -15 ∘^{\circ} C and dumps excess heat into the kitchen,whose temperature is 22 ∘^{\circ} C.If the refrigerator has half the coefficient of performance of an ideal reversible refrigerator,and if its motor can supply 250W of power,what is the rate of heat flow out of the freezer portion of the refrigerator?


A) 340W
B) 300W
C) 1100W
D) 625W

Correct Answer:

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