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J & K CET Engineering J and K - CET Engineering Solved Paper-2009

  • question_answer
    If the ratio of the rates of diffusion of two gase A and B is 4 :1, the ratio of their densities in the same order is

    A)  16: 1        

    B)  1:4

    C)  4 : 1         

    D)  1 : 16

    Correct Answer: D

    Solution :

     Rate of diffusion, \[r\propto \frac{1}{\sqrt{density,d}}\] \[\Rightarrow \] \[\frac{{{r}_{A}}}{{{r}_{B}}}=\sqrt{\frac{{{d}_{B}}}{{{d}_{A}}}}\] or \[\frac{4}{1}=\sqrt{\frac{{{d}_{B}}}{{{d}_{A}}}}\] \[\frac{{{d}_{A}}}{{{d}_{B}}}=1:16\]


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