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

  • question_answer If rate of diffusion of A is 5 times that of B, what will be the density ratio of A and B         [AFMC 1994]

    A)                 1/25      

    B)                 1/5

    C)                 25          

    D)                 4

    Correct Answer: A

    Solution :

                    \[{{r}_{a}}=5{{r}_{b}}\]; \[\frac{{{d}_{a}}}{{{d}_{b}}}={{\left[ \frac{{{r}_{b}}}{{{r}_{a}}} \right]}^{2}}={{\left( \frac{1}{5} \right)}^{2}}=\frac{1}{25}\]


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