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NEST2016PhysicsThermodynamics

Two bodies each of mass M and temperature independent specific heat C are initially at temperatures 100 K and 400 K . A reversible engine is used to extract heat with the hotter body as the source and cooler body as the sink. Both the bodies attain the same final temperature. Then,

Options

  1. Athe final temperature of the two bodies is 250 K .
  2. Bthe work done by the engine is 100 MC
  3. Ctotal change in entropy of the system is zero.
  4. Dthe total heat extracted from the hotter body is 150 MC

Correct answer

C. total change in entropy of the system is zero.

Step-by-step solution

No solution available.

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