enthalpy

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

• 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.

   $H=U+pV$, 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)
• Indonesian: entalpi (id)
• Japanese: エンタルピー (ja) (entarupī)
• Kazakh: энтальпия (éntalpiä)
• Khmer: អង់តាល់ពី (ʼɑngtalpii)
• Maori: hāwera
• Norwegian: entalpi (no)
• Persian: آنتالپی (fa) (ântâlpi)
• 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
• Thai: เอนทาลปี (een-tao-bpii), เอนทัลปี (een-tao-bpii)
• Turkish: entalpi
• Vietnamese: entanpi

See also

• Gibbs free energy