The efficiency of the reversible heat engine is ηr and that of irreversible heat engine is ηi. Which of the following relations is correct
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a
ηr>ηi
b
ηr<ηi
c
ηf=ηi
d
ηris greater than 1 and ηi is less than 1
answer is A.
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Detailed Solution
The efficiency of a reversible engine is always greater than the efficiency of irreversible engine. In case of irreversible engine, a part of the energy may he dissipated against friction, etc.