Fit the data from problem 11.11 to the following model by regression over all points, and compare with the experimental data on the same plot, using:

(a) One-parameter Margules equation

(b) Two-parameter Margules equation

Data from problem 11.11

(a) Fit the Margules two-parameter equation to the n-pentane(1) + acetone(2) system P-x-y data below at 1 bar (Lo et al. 1962. J. Chem. Eng. Data 7:32) by fitting to x₁ = 0.503. 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 y1 T (°C) sat Psat 0.021 0.108 49.15 1.560 0.803 0.134 0.475 39.58 1.146 0.551 0.292 0.614 34.35 0.960 0.453 0.503 0.678 33.35 0.903 0.421 0.728 0.739 31.93 0.880 0.410 0.953 0.906 33.89 0.954 0.445