The conversation between human and AI assistant.
Thermodynamics: We find the cop of refrigerator and not efficiency. Why?
Is there an ideal COP for a refrigerator?
There isn't really an ideal COP for a refrigerator, since it depends on a lot of factors like the temperature difference between the compartment and the surroundings and the efficiency of the compressor. But in general, a higher COP is better, since it means the refrigerator is removing more heat for the same amount of energy input.