1. The problem statement, all variables and given/known data A reversible refrigerator has a coefficient of performance equal to 9.55 What is its efficiency? 2. Relevant equations COP = Qh/W e = W/Qh 3. The attempt at a solution I thought e would simply be 1/9.55 = 0.1047 =0.105 (Sig. fig) This answer was incorrect. Can somebody please help?