Physics
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Question

Which of the following statements is correct for any thermodynamic system

  1. The internal energy changes in all processes
  2. Internal energy and entropy are state functions
  3. The change in entropy can never be zero
  4. The work done in an adiabatic process is always zero

The correct answer is: Internal energy and entropy are state functions


    The internal energy and entropy depend only on the initial and final states of the system and not on the path followed to attain that state.

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