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English
Etymology
From Ancient Greek ἐν- (en-, “in”) + θάλπω (thálpō, “to warm”). Coined by Dutch physicist Heike Kamerlingh Onnes, but first used in print by J. P. Dalton in 1909 in a paper titled "Researches on the Joule-Kelvin-effect, especially at low temperatures".
Pronunciation
Noun
enthalpy (countable and uncountable, plural enthalpies)
- (thermodynamics, physical chemistry) A measure of the heat content of a chemical or physical system.
- , where H is enthalpy, U is internal energy, p is pressure, and V is volume.
Derived terms
Translations
a measure of the heat content
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