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    quantitykind:Enthalpy
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    http://qudt.org/vocab/quantitykind/Enthalpy

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    Enthalpy
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    http://dbpedia.org/resource/Enthalpy
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    http://en.citizendium.org/wiki/Enthalpy
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    http://en.wikipedia.org/wiki/Enthalpy
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    \(H = U + pV\), where \(U\) is internal energy, \(p\) is pressure and \(V\) is volume.
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    http://www.iso.org/iso/catalogue_detail?csnumber=31890
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    In thermodynamics, "enthalpy} is the sum of the internal energy \(U\) and the product of pressure \(p\) and volume \(V\) of a system. The characteristic function (also known as thermodynamic potential) \textit{enthalpy} used to be called \textit{heat contents}, which is why it is conventionally indicated by \(H\). The specific enthalpy of a working mass is a property of that mass used in thermodynamics, defined as \(h=u+p \cdot v\), where \(u\) is the specific internal energy, \(p\) is the pressure, and \(v\) is specific volume. In other words, \(h = H / m\) where \(m\) is the mass of the system. The SI unit for \textit{Specific Enthalpy} is \textit{joules per kilogram".