Question

what is liquefaction define in detail
please give answer fastly

Answer 1

In materials science, liquefaction[1] is a process that generates a liquid from a solid or a gas] or that generates a non-liquid phase which behaves in accordance with fluid dynamics.[3] It occurs both naturally and artificially. As an example of the latter, a "major commercial application of liquefaction is the liquefaction of air to allow separation of the constituents, such as oxygen, nitrogen, and the noble gases."[4] Another is the conversion of solid coal into a liquid form usable as a substitute for liquid fuels.