quantitykind:HelmholtzEnergyqudt:QuantityKind| Predicate | Object |
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rdf:type |
qudt:QuantityKind |
dcterms:description |
\(\textit{Helmholtz Energy}\) is one of the potentials are used to measure energy changes in systems as they evolve from an initial state to a final state. The potential used depends on the constraints of the system, such as constant temperature or pressure. \(\textit{Internal Energy}\) is the internal energy of the system, \(\textit{Enthalpy}\) is the internal energy of the system plus the energy related to pressure-volume work, and Helmholtz and Gibbs free energy are the energies available in a system to do useful work when the temperature and volume or the pressure and temperature are fixed, respectively. The name \(\textit{Helmholz Free Energy}\) is also used. |
qudt:applicableUnit |
Show 50 values
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qudt:hasDimensionVector |
qkdv:A0E0L2I0M1H0T-2D0 |
qudt:informativeReference |
http://en.citizendium.org/wiki/Thermodynamics |
qudt:isoNormativeReference |
http://www.iso.org/iso/catalogue_detail?csnumber=31890 |
qudt:latexDefinition |
\(H = U - T \cdot S\), where \(U\) is internal energy, \(T\) is thermodynamic temperature and \(S\) is entropy. |
qudt:symbol |
“A” |
rdfs:comment |
“Applicable units are those of quantitykind:Energy” |
rdfs:isDefinedBy |
http://qudt.org/3.1.11/vocab/quantitykind |
rdfs:label |
Show 16 values
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rdfs:seeAlso |
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skos:altLabel |
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skos:broader |
quantitykind:Energy |