Given the following experimental VLE data for methanol$(1)/1,2-$dichloroethane$(2)$ at $50C...$

a$)$ Derive and plot $ln{}_1,ln{}_2$ and $\frac{G^E}{x_1}{x}_{2}RT$ as a function of $x_1$ using the experimental data.

b$)$ Use the van Laar equation to determine the two coefficients.

c$)$ Plot the $P-x,y$ behavior at $50C$ based on your van Laar model, comparing it to the

experimental VLE data.

d$)$ Calculate the residuals for $\frac{G^E}{R}Tln(\frac{{}_1}{{}_2})$ to see if your model has good consistency

with the experimental data.

As before, add only the most key details & plots to your main report and add any relevant

datasheets to an Appendix at the end of your report.

Hint: You may need to use Thermosolver to calculate the saturation pressure of a given species!