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Discussion :: Chemical Engineering Thermodynamics

  1. Fugacity and pressure are numerically not equal for the gases

    2. A.

     At low temperature and high pressure
    B.

     At standard state
    C.

     Both A and B
    D.

     In ideal state

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    Answer : Option C

    Explanation :

    The fugacity is also called as effective pressure in case of real gas ,and for ideal gas it numerically becomes equal to pressure so, for an gas to behave ideally we know the required conditions should be high temperature and low pressure and an standard state is usually selected where we know the value of fugacity so, it may or may not be equal to pressure.

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