Question 466: Thermodynamics & KTG

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 :
![](https://imagex.cdn.examgoal.net/OCCqNsnBb6k2TwPFf/mQhrDIhyXBnQsHTFlLVUBSCT93Otu/j3qP3Oow0WPqFIuDe9WRhV/image.png)

Accepted Answer

$A$ to $B$ is an isobaric process. The work done
$W = nR\left( {{T_2} - {T_1}} \right) = 2R\left( {500 - 300} \right) = 400R$

Answer

$300$ $R$

Answer

$400$ $R$

Answer

$500$ $R$

Answer

$200$ $R$

Thermodynamics & KTG

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 :

Choose the correct answer: