A single$-$stage liquid$/$vapor separation for the toluene $(1)/$benzene $(2)$ system must produce

phases of the following equilibrium compositions. For $x_1=0\mathrm{.}28,y_1=0\mathrm{.}32,$ determine $T$ and

$P$ in the separator. What additional information is needed to compute the relative amounts of

liquid and vapor leaving the separator?