A heat engine having an efficiency of 70% is used to drive a refrigerator having a coefficient of performance of 5. The energy absorbed from the low-temperature reservoir by the refrigerator for each kJ of energy absorbed from the high-temperature source by the engine is ________ A. 0.14 kJ B. 0.71 kJ C. 3.5 kJ D. 7.1 kJ
Answer:

