1.

A refrigerator with COP of 5 is used in a room at 300 K. What will be the heat intake through a section of refrigerator wall of area 100 cm × 100 cm with a thickness of 10 cm, assuming only conduction? Value of thermal conductivity of the wall can be taken as 1 W/cm.K

A. 50000 W
B. 1000 W
C. 7500 W
D. 3000 W
Answer» B. 1000 W


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