$8-38.$ Use the expression for $ln$ in reduced form given in Problem $8-37$ along with the RedlichKwong equation in reduced form $($Example $2-7)$ to plot $ln$ versus $P_R$ for $T_R=1\mathrm{.}00$ and $2\mathrm{.}00$ and compare your results with those you obtained in Problem $8-35$ for the van der Waals equation.

Equation from $8-37$:

$ln=\frac{0\mathrm{.}25992}{\frac{?}{\text{b}\text{a}\text{r}}(V{)}_R-0\mathrm{.}25992}-\frac{1\mathrm{.}2824}{T_R^{\frac{3}{2}}(\frac{?}{\text{b}\text{a}\text{r}}(V{)}_R+0\mathrm{.}25992)}$

$-\frac{4\mathrm{.}9340}{T_R^{\frac{3}{2}}}ln(\frac{\frac{?}{\text{b}\text{a}\text{r}}(V{)}_R+0\mathrm{.}25992}{\frac{?}{\text{b}\text{a}\text{r}}(V{)}_R})-ln[1-\frac{1\mathrm{.}2824(\frac{?}{\text{b}\text{a}\text{r}}(V{)}_R-0\mathrm{.}25992)}{\frac{T_R^{\frac{3}{2}}}{b}ar(V{)}_R(\frac{?}{\text{b}\text{a}\text{r}}(V{)}_R+0\mathrm{.}25992)}]$

$($no need to compare results with $8-35)$

$8-38.$ Use the expression for $ln$ in reduced form given in Problem $8-37$ along with the RedlichKwong equation in reduced form $($Example $2-7)$ to plot $ln$ versus $P_R$ for $T_R=1\mathrm{.}00$ and $2\mathrm{.}00$ and compare your results with those you obtained in Problem $8-35$ for the van der Waals equation.

Equation from $8-37$:

$ln=\frac{0\mathrm{.}25992}{\frac{?}{\text{b}\text{a}\text{r}}(V{)}_R-0\mathrm{.}25992}-\frac{1\mathrm{.}2824}{T_R^{\frac{3}{2}}(\frac{?}{\text{b}\text{a}\text{r}}(V{)}_R+0\mathrm{.}25992)}$

$-\frac{4\mathrm{.}9340}{T_R^{\frac{3}{2}}}ln(\frac{\frac{?}{\text{b}\text{a}\text{r}}(V{)}_R+0\mathrm{.}25992}{\frac{?}{\text{b}\text{a}\text{r}}(V{)}_R})-ln[1-\frac{1\mathrm{.}2824(\frac{?}{\text{b}\text{a}\text{r}}(V{)}_R-0\mathrm{.}25992)}{\frac{T_R^{\frac{3}{2}}}{b}ar(V{)}_R(\frac{?}{\text{b}\text{a}\text{r}}(V{)}_R+0\mathrm{.}25992)}]$

$($no need to compare results with $8-35)$