Question: How much work must be done by a Carnot refrigerator to transfer 1.00 J as heat (a) from a reservoir at 5.70C to one at

How much work must be done by a Carnot refrigerator to transfer 1.00 J as heat


(a) from a reservoir at 5.70°C to one at 24.0°C,


(b) from a reservoir at -73.0°C to one at 24.0°C,


(c) from a reservoir at -174°C to one at 24.0°C, and


(d) from a reservoir at -210°C to one at 24.0°C?

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