A refrigerator takes a quantity of heat 'Q' from the cold body, with work done 'W' on it, transfers heat to the hot body.(a) What does the ratio Q/W represent?

A refrigerator takes a quantity of heat 'Q' from the cold body, with w

1.	A refrigerator takes a quantity of heat 'Q' from the cold body, with work done 'W' on it, transfers heat to the hot body.(a) What does the ratio Q/W represent?
Answer» SOLUTION :COEFFICIENT of PERFORMANCE