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An ideal heat engine works between the temperature `327^(@)C` (source) and `27^(@)C` (sink). What is its efficiency?
A. 1
B. 0.75
C. 0.5
D. 0.25

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1 Answers

Correct Answer - C
`eta=1-(T_(2))/(T_(1))=1-(300)/(600)=(3)/(4)=0.75`
=75%.

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