Uttarakhand PMT Uttarakhand PMT Solved Paper-2007

  • question_answer
    For an ideal gas, Joule-Thomson coefficient is

    A)  zero

    B)  negative

    C)  positive

    D)  depend on molecular weight

    Correct Answer: A

    Solution :

     Joule-Thomson effect is zero in an ideal gas in which van der Waals forces of attraction are negligible and there is no expenditure of energy in overcoming these force of attraction. Joule-Thomson coefficient\[({{\mu }_{JT}})\]is given by \[{{\mu }_{JT}}=-{\left[ \frac{H}{P} \right]}/{{{C}_{P}}}\;\] \[{{\mu }_{JT}}=0\]for ideal gas.


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