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JEE Main & Advanced JEE Main Paper (Held On 8 April 2017)

  • question_answer
    An ideal gas has molecules with 5 degrees of freedom. The ratio of specific heats at constant pressure \[({{C}_{P}})\] and at constant volume \[({{C}_{V}})\]is [JEE Online 08-04-2017]

    A) \[\frac{7}{5}\]                                   

    B)  6

    C) \[\frac{7}{2}\]                                   

    D) \[\frac{5}{2}\]

    Correct Answer: A

    Solution :

    \[f=\frac{{{C}_{P}}}{{{C}_{a}}}=1+\frac{2}{1}\]                    \[=7/5\]


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