By measuring the equilibrium between liquid and vapour phases of a propanone(P)/methanol(M) solution at 57.2 °C at 1.00 atm, it was found that xP = 0.400 when yP = 0.516. Calculate the activities and activity coefficients of both components in this solution on the Raoult’s law basis. The vapour pressures of the pure components at this temperature are: pP* = 105 kPa and pM* = 73.5 kPa. (xP is the mole fraction in the liquid and yP the mole fraction in the vapour.)

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