A refrigerator is to maintain eatables kept inside at 9 degree Celsius. If the room temperature is 36 degree Celsius, then what is the coefficient of performance?

Question

A refrigerator is to maintain eatables kept inside at 9 degree Celsius. If the room temperature is 36 degree Celsius, then what is the coefficient of performance? (A)  10.44  (B)  20.62  (C)  1.44  (D)  19.82

Tardigrade Admin · Accepted Answer

Coefficient of performance , β=(T2/T1-T2) =(273+9/(273+36)-(273+9)) =10.44

Q. A refrigerator is to maintain eatables kept inside at $9$ degree Celsius. If the room temperature is $36$ degree Celsius, then what is the coefficient of performance?

$10.44$

$20.62$

$1.44$

$19.82$

Coefficient of performance , $β = \frac{T _{2}}{T _{1} - T _{2}}$
$= \frac{273 + 9}{( 273 + 36 ) - ( 273 + 9 )}$
$= 10.44$

Q. A refrigerator is to maintain eatables kept inside at 9 degree Celsius. If the room temperature is 36 degree Celsius, then what is the coefficient of performance?

10.44

20.62

1.44

19.82