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Glite Dictionary
enthalpy

enthalpy

1 9.9
A measure of the total heat inside a system used in energy changes
  • noun
  • /ˈɛnθəlpi/
  • Specialized
translation icon : entalpía
  • The enthalpy of the gas increased when heated, indicating a rise in its total heat content.
  • enthalpy change
  • enthalpy budget

Examples

  • Typically, as the supercooled liquid's temperature decreases, so do its enthalpy and volume, as illustrated by the plot in Figure 1a.

    Academic text (2012)

  • But now why are bond enthalpies important to us?

  • Change in enthalpy per atom of fuel

    Academic text (1994)

  • The thermodynamic structure and enthalpy budget of the atmosphere.

    Academic text (2012)

  • You may feel cool as the suit's heating unit struggles to keep up with the enthalpy.

    Fiction book (1990)

  • So for a liquid, the enthalpy depends on TNP.

  • Here H is enthalpy, T is absolute temperature, and S is entropy.

    Academic text (2012)

  • Not individual paths, but collective terms such as enthalpy and entropy.

  • In addition, the mixing enthalpy between Ni and Co is 0.

    Academic text (2018)

  • The enrichment of Al and Ni in the BCC phases is related to their mixing enthalpy.

    Academic text (2018)

Synonyms

heat content
vsenthalpy
  • Specialized
2 6.7

The total energy in a system, including energy from pressure and volume

is the formal thermodynamics term for that total energy measure
total heat
vsenthalpy
  • Specialized
1 7.0

The amount of energy inside a system plus its pressure times its volume

is the formal thermodynamics term for that total energy measure

How Much

H
  • Specialized
4 8.9
enthalpy
  • Specialized
1 9.9

Surface Forms

enthalpy singular
enthalpies plural

Etymology

Enthalpy comes from Greek parts en- meaning 'in' and thalpein meaning 'to heat'. So it literally means 'heat within', which is why enthalpy measures the total heat content of a system.