Question: A Carnot engine whose high - temperature reservoir is at 6 6 0 KK takes in 5 4 0 JJ of heat at this temperature

A Carnot engine whose high-temperature reservoir is at 660 KK takes in 540 JJ of heat at this temperature in each cycle and gives up 330 JJ to the low-temperature reservoir. How much mechanical work does the engine perform during each cycle?
Express your answer in joules. What is the temperature of the low-temperature reservoir?
Express your answer in kelvins. What is the thermal efficiency of the cycle?
Express your answer as a percent.

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