A beaker filled with an equimolar liquid mixture of ethyl alcohol and ethyl acetate evaporates at

$0C$ into still air at $101$kPa$(1$atm$).$ Assuming Raoult's law, what is the liquid composition when

half the ethyl acetate has evaporated, assuming each component evaporates independently? Also

assume that the liquid is always well$-$mixed. The diffusivity of $AC$ and $AL$ in air are $6\mathrm{.}45{10}^{-6}\frac{m^2}{s}$

and $9\mathrm{.}29{10}^{-6}\frac{m^2}{s},$ respectively. Use Antoine equation to estimate vapor pressure.