A refrigerator is to maintain eatables kept inside at 90 C. If room temperature is 360 C, calculate the coefficient of performance.
Correct option is A) A refrigerator is to remove heat from the eatable kept inside at 9oC→273+9=282K. Calculate the coefficient of performance, if the room temperature is 360C→273+36=309K. Coefficient of performance of a refrigerator is given as COP=Thot−TcoldTcold =(309−282)282=10.444
