different between enthalpy vs isoenthalpic

English

Etymology

From Ancient Greek ??????? (enthálp?, “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): /??n.??l.pi?/

Noun

enthalpy (countable and uncountable, plural enthalpies)

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

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

Derived terms

Translations

See also

• Gibbs free energy

English

Alternative forms

• isenthalpic

Etymology

iso- +? enthalpic

Adjective

isoenthalpic (not comparable)

1. (thermodynamics, of a process) Having constant enthalpy

Usage notes

isoenthalpic is more common in the fields of statistical mechanics (e.g. the Isoenthalpic–isobaric ensemble), whereas isenthalpic tends to be more common in classical thermodynamics, HVAC, etc.

Related terms

• isoenthalp