Compare the experimental vapor phase mole fractions published by Hiaki et al. for the system acetone (1) - chloroform (2) - methanol (3) at 1 atm with the calculated ones using the binary Wilson parameters lij listed in assuming ideal vapor phase behavior.
The calculation should be performed for the following composition at T=331.42 K:
x1 = 0.229, x2 = 0.175, x3 = 0.596, y1 = 0.250, y2 = 0.211, y3 = 0.539.
Calculation of the activity coefficient as function of temperature and composition can be performed using the expression given in Table 5.6:
The results can now be compared to the experimental data given by Hiaki et al.. The measurements were performed at 1 atm, which is 3.2% lower than the calculated value.
The experimental vapor phase compositions of the first two components differ strongly (by about 4 mol%) from the experimental findings:
This also results in serious discrepances between the experimental and calculated separation factors: