Question

One mole of a monoatomic gas is carried along process ABCDEA as shown in the diagram. Find the net work done by gas

• A. $\frac{3}{2}\text{J}$
• B. $1\text{J}$
• C. $\frac{1}{2}\text{J}$
• D. $0\text{J}$

Answer 1

The correct option is C $\frac{1}{2}\text{J}$

Net work done is area under PV curve = Area ABC - Area AED

= $\frac{1}{2}\times 2\times 1-\frac{1}{2}\times 1\times 1=\frac{1}{2}\text{J}$