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Q.

A thermodynamic system undergoes cyclic process ABCDA as shown in figure. The work done by the system in the cycle is
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a

2P0V0

b

P0Vo2

c

P0V0

d

Zero

answer is D.

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Detailed Solution

Area of the upper triangle
=12×2V0V0×3P02P0=P0V02
So work done in that cycle
W1=P0V02[Anticlockwise]
Area of the lower triangle
=12×2V0V0×2P0P0=P0V02
So work done in this cycle
W2=+P0V02 [Clockwise
Total workdoneW=W1+W2=0

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