A reversible power cycle receives enery qh from a hot

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A reversible power cycle receives enery Qh from a hot reservoir at Th and rejects enerfy Qc by heat transfer to a cold reservoir at Tc.

a) If Th= 1200 K and Tc= 300 K, what is the efficiency of the power cycle?

b) If Th= 500 degrees Celsius, Tc= 20 degrees Celsius, and Wnet= 1200 kJ, what are Qh and Qc, each in kJ?

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