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The efficiency of an ideal heat engine w...

The efficiency of an ideal heat engine working between the freezing point and boiling point of water, is

A

`6.25 %`

B

`20 %`

C

`26.8%`

D

`12.5%`

Text Solution

Verified by Experts

The correct Answer is:
C
Efficiency of an ideal heat engine,
`eta = 1 -(T_2)/(T_1) [{:(T_(2) =, "temperature of the sink"),(T_(1) = ,"temperature of the source"):}]`
or, `eta = 1 - (273)/(373) = (100)/(373)`
`:. Eta = 100/373 xx 100%`
` = 26.8%`.
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