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Question: Answered & Verified by Expert
A thermodynamic system is taken through the cycle PQRSP process. The net work done by the system is

PhysicsThermodynamicsNEET
Options:
  • A 20 J
  • B -20 J
  • C 400 J
  • D -374 J
Solution:
1021 Upvotes Verified Answer
The correct answer is: -20 J

Work done by the system = Area of the loop on P-V diagram

W=-300-100×10-6×200-100×103

W=-20 J

(As cyclic process is in anti-clockwise sense, the work done is negative)

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