Question

$P$ - $V$ diagram of an ideal gas is as shown in figure. Work done by the gas in process $ABCD$ is

• A. $2P_0{V}_0$
• B. $4P_0{V}_0$
• C. $P_0{V}_0$
• D. $3P_0{V}_0$

Answer 1

The correct option is D

$3P_0{V}_0$

$W=P\Delta V$
Work done in $AB$ process,
$W_{AB}=-P_0{V}_0$
Work done in $BC$ process,
$W_{BC}=0$
Work done in $CD$ process,
$W_{CD}=4P_0{V}_0$
Total work done,
$W_{ABCD}=-P_0{V}_0+0+4P_0{V}_0=3P_0{V}_0$

Final Answer: (c)