It takes a certain amt. of helium atoms 10. s to effuse through a porous barrier.?

It takes a certain amt. of helium atoms 10. s to effuse through a porous barrier. How long does it take the same amount of methane molecules to effuse through the same barrier under the same conditions?

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  • Dinesh
    Lv 5
    8 years ago
    Favorite Answer

    Follow Graham's law of diffusion.square root of M2/M1=t2/t1

    M1=4(He),t1=10;M2=16(CH4);t2=?

    substitue the values and calculate the answer is 20 sec

    Source(s): chemiphyindran.blogspot.com
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