Question

$P-V$ diagram for cyclic process is shown in column I. ($P$ is pressure of gas, $V$ is volume of gas). Heat absorbed by the gas is $Q$ and work done by the gas is $W$ in the cyclic process. Match the following:

• A. A –r,p B – q,s C – q,s D – p,r
• B. A – q,s B – p,s C – p,r D – q,r
• C. A –s,q B – r,q C – s,q D – r,s
• D. A –r,s B – s,q C – p,s D – q,s

Answer 1

The correct option is A A –r,p B – q,s C – q,s D – p,r

In a cyclic process $Q=W$ and work done is the area enclosed by the cycle.

Work done is $+ve$ when the cycle is clockwise.
Work done is $-ve$ when the cycle is anti-clockwise.