JCECE Engineering JCECE Engineering Solved Paper-2008

  • question_answer
    In van der Waals' equation of state of the gas law, the constant \['b'\] is a measure of

    A)  intermolecular repulsions

    B)  intermolecular attractions

    C)  volume occupied by the molecules

    D)   intermolecular collisions per unit volume

    Correct Answer: C

    Solution :

    van der Waals' equation for one mole of a gas is                \[\left[ p+\frac{a}{{{V}^{2}}} \right]=(V-b)=RT\]\[b\]is the volume correction. It arises due to finite size of molecules.


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