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NEET Sample Paper NEET Sample Test Paper-90

  • question_answer
    The molar specific heat at constant pressure of an ideal gas is (7/2) R. The ratio of specific heat at constant pressure to that at constant volume is

    A) 8/7                   

    B)        5/7   

    C) 9/7                   

    D)         7/5

    Correct Answer: D

    Solution :

    [d] \[{{C}_{p}}=\frac{7}{2}R;\]\[{{C}_{V}}={{C}_{P}}-R=\frac{7}{2}R-R=\frac{5}{2}R\] \[\frac{{{C}_{P}}}{{{C}_{V}}}=\frac{7/2\,\,R}{5/2\,\,R}=\frac{7}{5}\]


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