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Discussion :: Chemical Engineering Thermodynamics

  1. At equilibrium condition, the chemical potential of a material in different phases in contact with each other is equal. The chemical potential for a real gas (μ) is given by(where, μ = standard chemical potential at unit fugacity (f° = 1 atm.) and the gas behaves ideally.)

    2. A.

     μ° + RT ln f
    B.

     μ°+ R lnf
    C.

     μ° + T lnf
    D.

     μ° + R/T lnf

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    Answer : Option A

    Explanation :

    The chemical potential and fugacity of an real gas is related by :
    μ=μ∘+RTlnff∘
    Where f∘=   standard fugacity given =1

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