JEE Main & Advanced Chemistry States of Matter / पदार्थ की अवस्थाएँ - गैस एवं द्रव Question Bank Molecular speeds

  • question_answer
    The ratio of most probable velocity to that of average velocity is               [JEE Orissa 2004]

    A)                 \[\pi /2\]             

    B)                 \[2/\pi \]

    C)                 \[\sqrt{\pi }/2\]               

    D)                 \[2/\sqrt{\pi }\]

    Correct Answer: C

    Solution :

                    \[\frac{{{V}_{mp}}}{{{V}_{av}}}=\frac{\sqrt{\frac{2RT}{M}}}{\sqrt{\frac{8RT}{\pi M}}}=\frac{\sqrt{\pi }}{2}\]


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