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Work Done

In figure, ce...

Question

In figure, certain mass of gas traces three paths $1, 2, 3$ from state $P$ to state $Q$ . If the work done by the gas along three paths are $W_{1}, W_{2}, W_{3}$ respectively, then

W_{1} < W_{2} < W_{3}

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W_{1} = W_{2} = W_{3}

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W_{1} > W_{2} > W_{3}

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Solution

The correct option is C $W_{1} > W_{2} > W_{3}$
Area under $P - V$ graph gives workdone.
$∴$ Work done in $1$ st process is greater than $2$ nd and $3$ rd process.
It is clearly evident from given figure that area under $2$ nd process is greater than area under $3$ rd process.
$∴$ We can conclude that, $W_{1} > W_{2} > W_{3}$

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