enthalpy

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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

English Wikipedia has an article on:
Wikipedia
  • IPA(key): /ˈɛn.θəl.piː/
  • Audio (US):(file)

Noun

enthalpy (countable and uncountable, plural enthalpies)

  1. (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

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See also