Q.

A heat engine is operation on carnot cycle with efficiency 40%, If the temperature of source is 327oC , what should be the temperature of the sink?

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a

52oC

b

127oC

c

92oC

d

87oC

answer is D.

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Detailed Solution

η=1-T2T1⇒T2=T11-η=273+3271-0.4k⇒t2=87oC
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