AWork done by diatomic gas is more than that by monoatomic gas
a
$(a)$ Expansion curves are as shown below.
As, slope of an adiabatic curve $=-\gamma\left(\frac{p}{V}\right)$
Also, $\gamma_{\text {diatomic }}\left(=\frac{7}{5}\right) < \gamma_{\text {monoatomic }}\left(=\frac{5}{3}\right)$
So, adiabatic expansion will be more stecp for monoatomic gas, whereas isotherms for both gases are nearly same. As, work done $=$ area under $p-V$ graph
$\therefore$ Work done is more for diatomic gas.
