Determine scycle if the thermal efficiency is 75

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Reference no: EM131238659

A system executes a power cycle while receiving 2000 Btu by heat transfer at a temperature of 1000 R and discharging energy by heat transfer at a temperature of 500°R. There are no other heat transfers. Applying Eq. 7.2, determine σcycle if the thermal efficiency is

(a) 75%,

(b) 50%,

Identify the cases (if any) that are internally reversible or impossible.

Reference no: EM131238659

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