Question
Question: An ideal refrigerator has a freezer at a temperature of –13<sup>0</sup>C. The coefficient of perform...
An ideal refrigerator has a freezer at a temperature of –130C. The coefficient of performance of the engine is 5. The temperature of the air (at which heat is rejected) will be –
A
3250C
B
325 K
C
390C
D
3200C
Answer
390C
Explanation
Solution
& b = 5
T2 = 273 – 13 \ T1 = 39º C or
= 260 K
= 273 + 39 = 312 K