From the following compressibility$-$factor data for $C{O}_2$ at $150C,$ prepare plots of

the fugacity and fugacity coefficient of $C{O}_2$ vs$.P$ for pressures up to $500$ bar.

Compare results with those found from the generalized correlation represented by

Eq$.(10\mathrm{.}68).$

For $S{O}_2$ at $600K$ and $\frac{300}{b}ar,$ determine good estimates of the fugacity and of $\frac{G^R}{R}T.$

Estimate the fugacity of isobutylene as a gas:

$($a$)$ At $280C$ and $20$ bar;

$($b$)$ At $280C$ and $100$ bar.