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J & K CET Medical J & K - CET Medical Solved Paper-2009

  • question_answer
    If the ratio of the rates of diffusion of two gases 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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