A refrigerator keeps food in the freezer portion at −15°C and dumps excess heat into the kitchen, whose temperature is 22°C. If the refrigerator has half the coefficient of performance of an ideal reversible refrigerator, and if its motor consumes 250 W of power, what is the rate of heat flow out of the freezer portion of the refrigerator?
A) 340 W
B) 870 W
C) 1,100 W
D) 630 W

Question

Quizplus · Accepted Answer

The Answer of A refrigerator keeps food in the freezer portion at −15°C and dumps excess heat into the kitchen, whose temperature is 22°C. If the refrigerator has half the coefficient of performance of an ideal reversible refrigerator, and if its motor consumes 250 W of power, what is the rate of heat flow out of the freezer portion of the refrigerator?
A) 340 W
B) 870 W
C) 1,100 W
D) 630 W

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