The VLE data for methanol $(1)$ and carbon$-$tetrachloride $(2)$ at at $20C$ are given below:

Vapor pressure of carbon$-$tetrachloride $(2)$ at $20C$ is $92\mathrm{.}08mmHg.$

a$.$ Find the vapor pressure of methanol $(1)$ at $20C.$

b$.$ Determine the parameters A and B in Van Laar Equation and Margules Equation

using linear plots $($See lecture notes$)$

$1$ of $2$

c$.$ Plot the data and model preditions of the activity coefficeints ${}_1$ and ${}_2$ versus liquid mole fraction

$x_1$ for Van Laar and Margules models. Comment on any model$-$data discrepency $($deviation of

calculated from data$).$

d$.$ Plot vapor mole fraction $y_1$ versus versus liquid mole fraction $x_1$ along with $45$ line.

e$.$ Plot the total pressure $($data and calculated values$)$ versus liquid and vapor mole fractions.

Is there any azeotrope? If yes, find the vapor and liquid compositions?

Antoine equation coeficients: $A=8\mathrm{.}08097$;$B=1582\mathrm{.}271$;$C=239\mathrm{.}726$ for Methanol.