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Enthalpy (/ˈɛnθəlpi/ ⓘ) is the sum of a thermodynamic system's internal energy and the product of its pressure and volume. It is a state function in thermodynamics used in many measurements in chemical, biological, and physical systems at a constant external pressure, which is conveniently provided by Earth's ambient atmosphere. The pressure–volume term…
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| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Enthalpy | Common symbols | H | 1.00 | infobox |
| Enthalpy | In SI base units | kg⋅m2⋅s−2 | 1.00 | infobox |
| Enthalpy | SI unit | joule | 1.00 | infobox |
| Enthalpy | is a | stand-in for energy in chemical systems | 0.90 | text |
| Enthalpy | is a | joule | 0.90 | text |
| Enthalpy | is a | preferred expression for measurements at constant pressure | 0.90 | text |
| Enthalpy | is a | state function.Enthalpies of chemical substances are usually listed for 1 bar | 0.90 | text |
| Enthalpy | is a | extensive property | 0.90 | text |
| Enthalpy | is a | sum of the enthalpies of the component subsystems | 0.90 | text |
| Enthalpy | is a | heat received by the system.For a simple system with a constant number of particles at constant pressure | 0.90 | text |
| Enthalpy | is a | so-called throttling process | 0.90 | text |
| Enthalpy | is a | extensive parameter | 0.90 | text |
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