$3$ Phase Diagrams $-$

Sketch the temperature$-$composition $("T-x")$ phase diagram for acetone, $\{$:$(C{H}_3{)}_{2}CO),$ and chlo$-$

roform, $CHC{l}_3,$ mixtures based on the following data $-$

Boiling point $(B_p)$ of pure acetone: $56\mathrm{.}2C$

$B_p$ of pure chloroform: $61\mathrm{.}2C$

$B_p$ of the acetone$-$chloroform azeotrope: $64\mathrm{.}7C$

Composition of the azeotrope, by weight: $21\%$ acetone, $79\%$ chloroform

Atomic weights $($in $gmo{l}^{-1})$: H: $1\mathrm{.}010,$ C: $12\mathrm{.}01,$ O: $16\mathrm{.}00,$ Cl: $35\mathrm{.}45$

Plot the mole fraction of acetone, $CHC{l}_3$ on the $x-$axis

On your sketch of the phase diagram determine the composition of the vapour phase and the

liquid phase for a system at $61\mathrm{.}2C$ having an overall acetone mole fraction of $z_A=0\mathrm{.}80.$