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The work done in an isochoric process is
1. Zero
2. Positive
3. Negative
4. None of the above

1 Answer

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Best answer
Correct Answer - Option 1 : Zero

The correct answer is option 1) i.e. Zero

CONCEPT:

  • Work done by a thermodynamic system:
    • The heat energy supplied to a thermodynamic system increases its internal energy and the remaining heat energy is converted into the work done by the system.
    • This work done is due to the heat that can either expand or compress a thermodynamic system.
    • Expansion or compression happens with a pressure that causes a change in the volume of the system.

Therefore, work done = ∫P × dV

  • Isochoric process: It is a thermodynamic process where the volume of the system undergoes no change i.e. remains constant.

EXPLANATION:

We know that work done = ∫P × dV

In an isochoric process, the volume remains constant i.e. change in volume (dV) is zero.

Hence, work done in an isochoric process = ∫P × 0 = 0

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