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11 Dec 2019
Substances A and B are both volatile liquids with p*A = 280. Torr, p*B = 260. Torr, and KB = 200 Torr (concentration expressed in mole fraction). When XA = 0.9, bB = 2.22 mol kgâ1, pA= 250 Torr, and pB = 25 Torr. Calculate the activities and activity coefficients of A and B. Use the mole fraction, Raoult's law basis for A and the Henry's Law basis system (both mole fractions and molalities) for B.
Question: For B (Henry's law basis; concentration in molality)
aB =?
γB =?
Substances A and B are both volatile liquids with p*A = 280. Torr, p*B = 260. Torr, and KB = 200 Torr (concentration expressed in mole fraction). When XA = 0.9, bB = 2.22 mol kgâ1, pA= 250 Torr, and pB = 25 Torr. Calculate the activities and activity coefficients of A and B. Use the mole fraction, Raoult's law basis for A and the Henry's Law basis system (both mole fractions and molalities) for B.
Question: For B (Henry's law basis; concentration in molality)
aB =?
γB =?