An engine transfers 2.5 X 103 J of energy from a hot reservoir during a cycle and has an efficiency of 0.3.
[a] How much heat is transferred as exhaust to a cold reservoir?
[b] How much work is performed by this engine in one cycle?
[c] If a refrigerator with a coefficient of performance of 4.0 exhausts 2.0 X 103 J of heat to a hot reservoir during one cycle, how much heat is removed from the interior(cold reservoir) during one cycle?