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heat of vaporization

   Also found in: Acronyms, Encyclopedia, Wikipedia 0.02 sec.
heat of vaporization
n.
The amount of heat required to convert a unit mass of a liquid at its boiling point into vapor without an increase in temperature.

heat of vaporization
The amount of heat required to convert a liquid into a gas at constant temperature and pressure. A gas releases the same amount of heat when it becomes liquid. Compare heat of fusion.
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.heat of vaporization - heat absorbed by a unit mass of a material at its boiling point in order to convert the material into a gas at the same temperature
heat of transformation, latent heat - heat absorbed or radiated during a change of phase at a constant temperature and pressure


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? Mentioned in ? References in periodicals archive
 
w] = molecular weight of water (constant), L = latent heat of vaporization (constant), R = universal gas constant, 273.
Some of these early data for ammonia and steam, most notably the heat capacity and heat of vaporization data, still are considered to be among the very best available.
Latent heat of vaporization of water is 974 Btu/lb = 540 kcal/kg
 
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