Question $2$

A liquid containing $50$mol$\%n-$hexane and $50$mol$\%n-$octane is required to be separated under flash distillation until $65\%$ of the liquid is distilled. The vapor pressure$-$equilibrium data for the system $n-$hexane and $n-$octane at $101\mathrm{.}32$kPa is given below:

$\backslash$table$[[$Vapor$-$liquid equilibrium data for n$-$Hexane $-$ n$-$Octane mixture.$],[$Tem$,C,\backslash$table$[[$Vapor Pressure,$],[($:$A$