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

Options

  1. A26 . 81 %
  2. B37 . 81 %
  3. C47 . 81 %
  4. D57 . 81 %

Correct answer

A. 26 . 81 %

Step-by-step solution

Steam point = 100   ° C = 100 + 273   K = 373   K Ice point = 0   ° C = 0 + 273   K = 273   K Now, η = 1 - T s i n k T s o u r c e = 1 - 273 373 = 100 373 × 100 % = 26 . 81 %

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