The coefficient of performance of a refrigerator is 5. If the temperature inside freezer is – 20°C, the temperature of the surroundings to which it rejects heat is ……
A. 21°C
B. 31°C
C. 41°C
D. 11°C
Answer:B
The coefficient of performance of a refrigerator is 5. If the temperature inside freezer is – 20°C, the temperature of the surroundings to which it rejects heat is ……
A. 21°C B. 31°C C. 41°C D. 11°C