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    Activities and activity coefficients

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    By measuring the equilibrium between liquid and vapor phases of a solution at 30°C at 1.00 atm, it was found that xA = 0.220 when yA = 0.314. Calculate the activities and activity coefficients of both components in this solution on the Raoult's law basis. The vapor pressures of the pure components at this temperature are P*A = 0.720 atm and P*B = 0.909 atm.

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    Solution Preview

    At 30 degree C, the vapour pressure of the pure componets are,
    PA = 0.720 atm
    PB = 0.909 atm

    and the total pressure Pt = 1 atm.

    The concentration of each component ...

    Solution Summary

    Activities and activities coefficients are discussed using Raoult's law basis.