heat of sublimation

heat of sublimation

noun Physics.
the heat absorbed by one gram or unit mass of a substance in the process of changing, at a constant temperature and pressure, from a solid to a gaseous state. Compare sublime (def. 10).
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heat of sublimation

noun
heat absorbed by a unit mass of material when it changes from a solid to a gaseous state 
WordNet® 3.0, © 2006 by Princeton University.
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