Question

A cyclic process is shown in the figure.Work done during isobaric expansion is:

• A. 1600 J
• B. 100 J
• C. 400 J
• D. 600 J

Answer 1

The correct option is C 400 J

We know AB is the isobaric process ass it has constant pressure. And work done is equal to area under AB. i.e.,

Work Done=area under AB=$P\Delta V=2\times {10}^2\times (3-1)=200\times 2=400J$