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Q. In the indicator diagram, net amount of work done will bePhysics Question Image

Thermodynamics

Solution:

Figure shows that loop 1 is anti-clockwise, therefore $W_{1}$ is negative, loop 2 is clockwise, therefore $W_{2}$ is positive. Also, loop 2 is bigger.
$W_{2}>W_{1}$
Hence, net work done $W=-W_{1}+W_{2}=W_{2}-W_{1}=(+)$ ve