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Consider a Carnot engine operating between heat reservoirs at 390 K and at 240 K. (a) What is the efficiency of this Carnot engine? 0.38

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Consider a Carnot engine operating between heat reservoirs at 390 K and at 240 K. (a) What is the efficiency of this Carnot engine? 0.38 (b) If we want to increase the efficiency by 10%, by how much must we increase the temperature of the high-temperature reservoir? 6.7 X K (c) Alternatively, by how much must we decrease the temperature of the low-temperature reservoir? 4.05 K

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