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AP EAMCET202124 Aug 2021Morning ShiftPhysicsThermodynamicsActual

Work done by a gas in the process shown in the figure will be

Options

  1. Apositive
  2. Bnegative
  3. Czero
  4. Dcannot be determined

Correct answer

B. negative

Step-by-step solution

We know that, the work done in cyclic thermodynamic process is equal to the area under p-V curve. W₁= work done in expansion from C D A is positive and W₂= work done in compression from A B C is negative. It is clear from the figure, Net work done, W=W₁-W₂ < 0

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