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12 March, 11:35

Which gas will diffusion faster within a system?

Carbon dioxide

Water vapor

Ammonia (NH3)

Methane (CH4)

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Answers (1)
  1. 12 March, 12:03
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    Methane (CH₄).

    Explanation:

    Thomas Graham found that, at a constant temperature and pressure the rates of effusion of various gases are inversely proportional to the square root of their masses.

    ∨ ∝ 1/√M.

    where, ∨ is the rate of diffusion of the gas.

    M is the molar mass of the gas.

    ∨₁/∨₂ = √ (M₂/M₁)

    The molar mass of different choices:

    Carbon dioxide: 44.01 g/mol.

    Water vapor : 18.0 g/mol.

    Ammonia (NH₃) : 17.0 g/mol.

    Methane (CH₄) : 16.0 g. mol.

    Since, methane has the lowest molar mass. So, it will diffuse faster within a system.
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