A refrigerator is to maintain eatables kept inside at 9^(@)C. The coefficient of performance of the refrigerator if room temperature is 36^(@)C, is

A refrigerator is to maintain eatables kept inside at 9^(@)C. The coef

1.	A refrigerator is to maintain eatables kept inside at 9^(@)C. The coefficient of performance of the refrigerator if room temperature is 36^(@)C, is
Answer» `10.4` `11.4` `12.4` `13.4` SOLUTION :Here, `T_(1) = 36^(@)C = 36 + 273 = 309 K` `T_(2) = 9^(@)C = 9 + 273 = 282 K` The COEFFICIENT of performance of a REFRIGERATOR is `beta = (T_(2))/(T_(1) - T_(2)) = (282)/(309 - 282) = (282)/(27) = 10.4`