Explain why a volatile liquid, evaporating into a sealed container filled with air, does not instantaneously?

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Spread but instead takes several minutes to evenly distribute itself?

Please answer this equation In a gcse style formatted answer

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  • Because the container is filled with air, the molecules of the volatile liquid have to distribute themselves between the air molecules. This is done through a process called Brownian motion. If there was no air inside the container, i’e. it contained a vacuum, the liquid would spread almost instantly to fill the container (i think)

    The volatile liquid in evaporate form will only distribute evenly if it has the same density as the air already inside the container.

    (Sorry it’s not in GCSE format, been a long time since I did my gcse’s)

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