Refrigerators: During each cycle of operation, a refrigerator absorbs 230 J of heat from the freezer and expels 356 J of heat to the room. How much work input is required in each cycle?
A) 712 J
B) 586 J
C) 460 J
D) 310 J
E) 126 J

Question

Quizplus · Accepted Answer

The work input required is the difference between the heat expelled to the room and the heat absorbed from the freezer. Therefore, Work = 356 J - 230 J = 126 J.

Refrigerators: During Each Cycle of Operation, a Refrigerator Absorbs 230