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NEET Chemistry States of Matter / पदार्थ की अवस्थाएँ - गैस एवं द्रव Question Bank Self Evaluation Test - States of Matter

  • question_answer
    Helium atom is two times heavier than a hydrogen molecule at. 298K. The average KE of helium is

    A) 2 times of \[{{H}_{2}}\] molecule

    B) same as that of \[{{H}_{2}}\] molecule

    C) 4 times that of hydrogen molecule

    D) \[\frac{1}{2}\] that of \[{{H}_{2}}\] molecule

    Correct Answer: B

    Solution :

    [b] \[K\overline{E}=\frac{3}{2}\frac{n}{{{N}_{o}}}RT\]. Average \[K\overline{E}\] is the same for all gaseous molecules


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