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Discussion :: Chemical Engineering Thermodynamics

  1. For an ideal liquid solution, which of the following is unity?

    2. A.

     Activity
    B.

     Fugacity
    C.

     Activity co-efficient
    D.

     Fugacity co-efficient

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    Answer : Option C

    Explanation :

    For an ideal liquid solution the activity coefficient will be equal to 1. Since, activity coefficient of a species is defined as
    γi=fugacity of the species in the real solution(~fl)fugacity of the species in the ideal solution(~flld)
    For ideal solution ~fl=~flld
    So,γi=1

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