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A Carnot engine is made to operate as a refrigerator. This refrigerator is used to freeze water at 0^ C to ice at 0^ C and the heat from the working substance is discharged into a large tank containing water at 34^ C . The latent heat of fusion of ice is 334 10^3 ~J / kg . The minimum amount of work required to freeze 3 kg of water is close to

Options

  1. A83 10^3 ~J
  2. B125 10^3 ~J
  3. C94 10^3 ~J
  4. D147 10^3 ~J

Correct answer

B. 125 10^3 ~J

Step-by-step solution

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