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6. Efficiency of a Carnot cycle is 75%. If temperature of the hot reservoir is 727C, calculate the temperature of the cold reservoir. [Ans: 23.C]7.
6. Efficiency of a Carnot cycle is 75%. If temperature of the hot reservoir is 727"C, calculate the temperature of the cold reservoir. [Ans: 23.C]7. A Carnot refrigerator operates between 250K and 300K. Calculate its coefficient of performance. [Ans: 5]
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