The efficiency of a Carnot's engine, working between steam point and ice point, will be

The efficiency of a Carnot's engine, working between steam point and ice point, will be
  1. 26.81%
  2. 37.81%
  3. 47.81%
  4. 57.81%

Solution

Steam point =100 °C=100+273 K=373 K

Ice point =0 °C=0+273 K=273 K

Now,

η=1-TsinkTsource  =1-273373

=100373×100%  =26.81%

Asked in: JEE Main 2022 (26 Jun Shift 1)

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