Two moles of helium gas are taken over the cycle $ABCD,$ as shown in the $P$-$T$ diagram. Assuming the gas to be ideal the work done on the gas in taking it from $A$ to $B$ is :

Question

Two moles of helium gas are taken over the cycle $ABCD,$ as shown in the $P$-$T$ diagram.

Assuming the gas to be ideal the work done on the gas in taking it from $A$ to $B$ is :

$300$ $R$

$400$ $R$

$500$ $R$

$200$ $R$

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