Question $3$: In terms of the compressibility factor, Z $($given by Z$=$PVmRT$),$ rewrite the Redlich Kwong equation; $=12(+)$

Then derive expressions for the limiting gradients of a Z vs P plot, i$.$e; $->0()$ ; $->\backslash$infty $()$Question $3$: In terms of the compressibility factor, $Z($given by $Z=\frac{P{V}_m}{RT}),$ rewrite the Redlich Kwong

equation;

$P=\frac{RT}{V_m-B}-\frac{A}{T^{\frac{1}{2}}{V}_m(V_m+B)}$

Then derive expressions for the limiting gradients of a $Z$ vs $P$ plot, i$.$e;

$\underset{P0}{lim}(\frac{\text{d}\text{e}\text{l}\text{Z}}{\text{d}\text{e}\text{l}\text{P}}{)}_T$;$\underset{P}{lim}(\frac{\text{d}\text{e}\text{l}\text{Z}}{\text{d}\text{e}\text{l}\text{P}}{)}_T$