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enthalpy::noun | Spocien Dictionary
| Type | Words |
|---|---|
| Synonyms | h, heat content, total heat |
| Type of | physical property |
enthalpy is the amount of energy in a system capable of doing mechanical work.
Examples of enthalpy
enthalpy
Examples are the Gibbs free energy, the Helmholtz free energy, and the enthalpy.
From the en.wikipedia.org
The outer scale gives the ratio of enthalpy difference to humidity difference.
From the en.wikipedia.org
Figure 2d shows the enthalpy of formation of xenon oxides as a function of pressure.
From the nature.com
Often the whole enthalpy is carried by entropy and thus measurable calorimetrically.
From the en.wikipedia.org
Enthalpy is the capacity to do non-mechanical work plus the capacity to release heat.
From the en.wikipedia.org
Evaporation enthalpy significantly cools down the remaining water within a few minutes.
From the sciencedaily.com
Hydrogen is about three times bulkier in volume than natural gas for the same enthalpy.
From the en.wikipedia.org
The specific enthalpy of a working mass is a property of that mass used in thermodynamics.
From the en.wikipedia.org
The following is a selection of enthalpy changes commonly recognized in thermodynamics.
From the en.wikipedia.org
- Heat content: (thermodynamics) a thermodynamic quantity equal to the internal energy of a system plus the product of its volume and pressure; "enthalpy is the amount of energy in a system capable of doing mechanical work"
- Enthalpy (denoted as H) is a measure of the energy associated with a system. It can be thought of as the amount of energy required to create a system plus the amount of energy required to make room for it by displacing its environment. ...
- In thermodynamics, a measure of the heat content of a chemical or physical system
- (Enthalpies) of fusion are positive because the solid state affords the molecules or ions that compose a pure substance the opportunity to maximize their attractive interactions with each other.
- A measure of the heat energy in a system; thermodynamic systems tend to react in ways that decrease their enthalpy
- A thermodynamic variable that is a system's internal energy plus the product of its pressure and volume: H = E + PV. [Chemistry - The Molecular Nature of Matter and Change; Silberberg, Martin; Ed. James M. Smith; p. 228; 1996; Mosby-Year Book, Inc.; St. Louis, Missouri. ...
- A thermodynamic state function, generally measured in kilojoules per mole. In chemical reactions the enthalpy change (deltaH) is related to changes in the free energy (deltaG) and entropy (deltaS) by the equation:
- The quantity of heat necessary to raise the temperature of a substance from one point to a higher temperature. The quantity of heat includes both latent and sensible.
- Total energy in a fluid (usually air) including both sensible energy (dry heat) and the latent energy associated with the water vapour in the air
