What is the effect of decrease in temperature difference between two reservoirs of heat pump on its COP?
A. COP increases with decreases in temperature difference between two reservoirs
B. COP decreases with decreases in temperature difference between two reservoirs
C. COP does not affected by change in temperature difference between two reservoirs
D. cannot say
Answer:C
What is the effect of decrease in temperature difference between two reservoirs of heat pump on its COP?
A. COP increases with decreases in temperature difference between two reservoirs B. COP decreases with decreases in temperature difference between two reservoirs C. COP does not affected by change in temperature difference between two reservoirs D. cannot say