Author Question: A refrigerator has a coefficient of performance of 4 . If the refrigerator absorbs 30 cal of heat ... (Read 97 times)

cdr_15 · **on:** Jul 28, 2018

A refrigerator has a coefficient of performance of 4 . If the refrigerator absorbs 30 cal of heat from the cold reservoir in each cycle, the heat expelled (in cal) into the heat reservoir is
a. 40.5
b. 37.5
c. 36.5
d. 34.5
e. 22.5

Question 2

A heat pump has a coefficient of performance of 4 . If the heat pump absorbs 20 cal of heat from the cold outdoors in each cycle, the heat expelled (in cal) to the warm indoors is
a. 34
b. 27
c. 36
d. 40
e. 80