(A) Find parameter values for the following models that provide the best fit to the experimental VLE data using (A.1) G'RT and (A.2) Barker's method: (a) Margules (b) Van Laar (c) Wilson (d) NRTL B) Prepare a P-x-y diagram that compares the experimental data with the correlation obtained in (A) Experimental equilibrium data for methanol (1) - water (2) at 60C, pressure in mm Hg X 0.0343 0.0466 0.0594 0.0793 0.1092 0.1634 0.1961 0.2705 0.3670 0.4619 0.5665 0.7582 yi 0.2106 0.2699 0,3312 0.3920 0.4714 0.5698 0.5989 0.6699 0.7462 0.7889 0.8223 0.9010 P (mm Hg) 183.64 196.92 211.65 228.70 254.75 291.74 309.50 353.18 395.79 431.10 466.95 538.25