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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

`12.5%`

B

`26.8%`

C

`6.25%`

D

`20%`

Text Solution

Verified by Experts

The correct Answer is:
B
Freezing point of water `T_2=0^@C`=273 K
Boiling point of water `T_1=100^@C` =373 K
Efficiency `eta=(T_1-T_2)/T_1xx100%`
`=(373-273)/373xx100%`
`=100/373xx100%`
`=26.8%`
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