JEE Main & Advanced Chemistry States of Matter Question Bank Ideal gas equation and Related gas laws

  • question_answer Molecular weight of a gas that diffuses twice as rapidly as the gas with molecular weight 64 is     [EAMCET 1994]

    A)                 16          

    B)                 8

    C)                 64          

    D)                 6.4

    Correct Answer: A

    Solution :

               \[{{M}_{1}}=64\]; \[{{r}_{2}}=2{{r}_{1}}\]                                 \[{{M}_{2}}={{M}_{1}}{{\left[ \frac{{{r}_{1}}}{{{r}_{2}}} \right]}^{2}}=64\times \frac{1}{4}=16\]


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