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JEE Main & Advanced JEE Main Solved Paper-2017

  • question_answer
    \[{{C}_{p}}\]and\[{{C}_{v}}\]are specific heats at constant pressure and constant volume respectively. It is observed that \[{{C}_{p}}-{{C}_{v}}=a\]for hydrogen gas \[{{C}_{p}}-{{C}_{v}}=b\]for nitrogen gas The correct relation between a and b is:                                             JEE Main Solved Paper-2017

    A)  \[a=14\,b\]                       

    B) \[a=28\,b\]

    C)  \[a=\frac{1}{14}b\]                        

    D)  \[a=b\]

    Correct Answer: A

    Solution :

     \[{{C}_{P}}-{{C}_{V}}=R\] where\[{{C}_{P}}\]and\[{{C}_{V}}\]are molar specific heat capacities As per the question \[a=\frac{R}{2}\]                              \[b=\frac{R}{28}\] \[a=14\,b\]


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