Which particles evaporate from a liquid first?

By Forinfos - 13/11/2025 - 0 comments

The particles that evaporate from a liquid first are the most energetic ones. The Maxwell-Boltzmann velocity distribution is an equation that describes this phenomenon, and it shows that in every substance, a fraction of the particles have a very large amount of kinetic energy.

An exponential function within the velocity distribution equation accounts for the particles that have enough energy to break free of the surface of a liquid. A solid object is one with the atoms or molecules arranged in a crystal lattice; a liquid has a looser arrangement; and, a gas has atoms with virtually no confinement forces. In a liquid, these energetic atoms are in a gaseous state, and evaporate from the surface.


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