Francesconi, Lunelli, and Comelli studied the liquid–vapour equilibria of trichloromethane and 1,2-epoxybutane at several temperatures (J. Chem. Eng. Data 41, 310 (1996)). Among their data are the following measurements of the mole fractions of trichloromethane in the liquid phase (xT) and the vapour phase (yT) at 298.15 K as a function of total pressure.
p/kPa
23.40
21.75
20.25
18.75
18.15
20.25
22.50
26.30
xT
0
0.129
0.228
0.353
0.511
0.700
0.810
1
yT
0
0.065
0.145
0.285
0.535
0.805
0.915
1
Compute the activity coefficients of both components on the basis of Raoult’s law.