Class 11 NEET Physics Thermodynamics and Kinetic Theory

In a cyclic process, work done is equal to the area under the cycle and is positive if the cycle is clockwise and negative if the cycle is anticlockwise.
∴ The net work done by the gas is
W= Area of the cycle ABCA
=

1

2

×(7−2)×10−3 ×(6−2)×105
=

1

2

×5×10−3×4×105
=10×102J=1000J