In a closed environment, diffusion ultimately results in:
AA loss of pressure
BEqual concentrations
CAll gas at one end
DComplete separation
Answer & Solution
Correct answer: B. Equal concentrations
1. Random molecular motion has no preferred direction.
2. Gases therefore spread until no gradient remains.
3. In a closed environment, diffusion will ultimately result in equal concentrations of gas throughout.
4. Separation would require something to drive the gases apart.
_Source: OpenStax Chemistry 2e (CC BY 4.0), Ch 9 'Gases', sections 9.1-9.6_
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