enthalpy

English

Etymology

From Ancient Greek ἐνθάλπω (enthálpō, “to warm in”). 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

• IPA^(key): /ˈɛn.θəl.piː/

• Audio (US):

  (file)

Noun

enthalpy (countable and uncountable, plural enthalpies)

1. (physics, chemistry) In thermodynamics, a measure of the heat content of a chemical or physical system.

   $H=U+pV$, where H is enthalpy, U is internal energy, p is pressure, and V is volume.

Derived terms

• enthalpic
• enthalpimetry
• enthalpogram
• enthalpy of vaporization

 

Translations

a measure of the heat content

• Basque: entalpia
• Catalan: entalpia f
• Chinese:

  Mandarin: 焓 (zh) (hán)

• Danish: entalpi c
• Esperanto: entalpio
• Finnish: entalpia (fi), lämpösisältö
• French: enthalpie (fr) f
• German: Enthalpie (de) f
• Greek: ενθαλπία (el) f (enthalpía)
• Hungarian: entalpia (hu)
• (deprecated template usage) {{trans-mid}}
• Indonesian: entalpi (id)
• Japanese: エンタルピー (entarupī)
• Kazakh: энтальпия (éntalpiä)
• Maori: hāwera
• Norwegian: entalpi (no)
• Polish: entalpia (pl) f, zawartość cieplna f
• Portuguese: entalpia (pt) f
• Russian: энтальпи́я (ru) f (entalʹpíja)
• Spanish: entalpía (es) f
• Swedish: entalpi (sv) c
• Tagalog: sanginit
• Turkish: entalpi

See also

• Gibbs free energy