An A + B mixture exhibits solvation in the liquid phase, which is to be represented using ideal chemical theory. Because of a Lewis acid/base interaction, the system is expected to form a 1-1 compound.

(a) Which one of the following sets of true mole fractions are correct for the system using an equilibrium constant of 3.2 to represent the complex formation at an apparent composition x_A = 0.4?

(b) Based on your answer for part (a), what are the apparent activity coefficients of A and B?

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Set I Set II ХАМ 0.2096 0.2646 XBM 0.4731 0.3983 ХАВ 0.3173 0.3372