Fit the specified model to the methanol(1) + benzene(2) system P-x-y data at 90°C by minimizing the sum of squares of the pressure residual. Plot the resultant fit together with the original data for both phases (data are in problem 11.10), using

(a) One-parameter Margules equation

(b) Two-parameter Margules equation

Data are in problem 11.10

(a) Fit the Margules two-parameter equation to the methanol(1) + benzene(2) system P-x-y data below at 90C (Jost, W., Roek, H, Schroeder, W., Sieg, L., Wagner, H.G. 1957. Z. Phys. Chem. 10:133) by fitting to x1=0.549. Plot the resultant fit together with the original data for both phases.

(b) Compare the data with the predictions of the MAB model.

Transcribed Image Text:

X1 0.117 0.257 0.376 0.549 0.707 0.856 V1 0.502 0.594 0.618 0.65 0.689 0.765 P (mmHg) 1865 2113 2218 2273 2292 2208