A refrigerator is to maintain eatables kept inside at 9^@ C. If room temperature is 36^@ C, calculate the coefficient of performance of refrigerator.

A refrigerator is to maintain eatables kept inside at 9^@ C. If room t

1.	A refrigerator is to maintain eatables kept inside at 9^@ C. If room temperature is 36^@ C, calculate the coefficient of performance of refrigerator.
Answer» 10.4 11.4 12.4 13.4 Solution :`T_1`=36+273 = 309 K `T_2`=9+273 =282 K COEFFICIENT of PERFORMANCE of refrigerator , `beta=T_2/(T_1-T_2)=282/(309-282)=282/27` `therefore beta=10.4`