To make ice, a freezer that is a reverse Carnot engine extracts 42kJ as heat at -15 during each cycle, with coefficient of performance 5. The room...

To make ice, a freezer that is a reverse Carnot engine

extracts 42kJ as heat at  -15 ℃ during each cycle, with coefficient

of performance 5.7. The room temperature is 30.3 ℃. How much (a)

energy per cycle is delivered as heat to the room and (b) work per

cycle is required to run the freezer?