Problem $2.$ When the experimental data are unavailable, the molar volumes of saturated liquids can be estimated by the modified Rackett equation:

where

$V_{{?}^{?}}(L)=\frac{R{T}_C}{P_C}{Z}_{RA}^{1+(1-T_r{)}^{2}T}$

$Z_{RA}=0\mathrm{.}29056-0\mathrm{.}09775$

Estimate the pressure at which the fugacity of liquid ethanol at $293K$ is $5\%$ higher than the fugacity of liquid at its saturation pressure.