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22 September, 18:25

What gas diffuses faster helium or neon?

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Answers (2)
  1. 22 September, 18:35
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    The correct answer is helium.
  2. 22 September, 18:38
    0
    For Neon (Ne), the atomic mass is 10 daltons, so the molar mass is 10

    grams. This means that one mole (Avogadro's number of particles, 6.02

    x 10^23) has a mass of 10 grams. Hydrogen, with an atomic mass of

    1 dalton for it's single proton, the molar mass would be 1 gram. With

    Neon, the speed of the individual Neon atoms is

    proportional to 1 / sqrt (10). So it is helium.
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