In physics and chemistry, the phase transitions from solid and gas to liquid (melting and condensation, respectively) may be referred to as liquefaction. The melting point (sometimes called liquefaction point) is the temperature and pressure at which a gas becomes a liquid.
In commercial and industrial situations, the process of condensing a gas to liquid is sometimes referred to as liquefaction of gases. Liquefaction is also used in commercial and industrial settings to refer to mechanical dissolution of a solid by mixing, grinding or blending with a liquid. Wikipedia, Liquifaction
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