different between evaporation vs pervaporation

English

From Old French évaporation, from Latin evaporatioMorphologically evaporate +? -ion

evaporation (countable and uncountable, plural evaporations)

The process of a liquid converting to the gaseous state.
The process in which all or a portion of liquid (in a container) is turned into vapour, in order to increase the concentration of solid matter in the mixture.
(archaic) That which is evaporated; vapor.

Blend of permeation +? evaporation

pervaporation (countable and uncountable, plural pervaporations)

(chemistry) A technique whereby the components of a mixture of two liquids are separated by selective permeation through a semipermeable membrane, the component that passes through the membrane being removed by evaporation

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