+244 A refirgerator pulls heat from the inside compartment at the rate of of 10kJ. It dumps 14 KJ into the air in the kitchen each cycle. What is the coefficient of the performance?
A. 0.40
B.0.71
C.2.5
D.1.4
+26388 A refirgerator pulls heat from the inside compartment at the rate of of 10kJ. It dumps 14 KJ into the air in the kitchen each cycle. What is the coefficient of the performance?
see 20.4 | Refrigerators Formula (20.9): http://hep.ucsb.edu/courses/ph23/Chap20Text.pdf
I assume:
K = QC / (QH-QC)
K = 10 kJ / (14 kJ - 10 kJ)
K = 10 / 4
K = 2.5
