A vapor mixture of $30$ mol$\%$ acetone$(1)$ and $70$ mol $\%$ methanol$(2)$ is cooled to temperature T at $1$ bar pressure. What is the required temperature T such that the liquid phase solution contains less than $17$ mol $\%$ acetone. What are the corresponding vapor phase compositions? You can assume Margules $1-$parameter model is valid, with A $=0\mathrm{.}64.$

Start by calculating a txy diagram $($at $1$ bar$)$

Get Saturation Pressures using Antoine's Equations

$($Do in Python$)$