Question

A gas undergoes a cyclic process ABCDA as shown in figure. The part ABC of process is semicircular. The work done by the gas is –

• A. 400 pJ
• B. 2456 J
• C. 200 p
• D. 1826 J

Answer 1

Answer: (C)

200 p

Answer 2

W_ABC­ = Area of semicircular

= $\frac{\pi R^{2}}{2} = \pi \times \frac{(20)^{2}}{2}$= 200p