quantitykind:ActivityCoefficient

URI: http://qudt.org/vocab/quantitykind/ActivityCoefficient

Type
Description

An "Activity Coefficient" is a factor used in thermodynamics to account for deviations from ideal behaviour in a mixture of chemical substances. In an ideal mixture, the interactions between each pair of chemical species are the same (or more formally, the enthalpy change of solution is zero) and, as a result, properties of the mixtures can be expressed directly in terms of simple concentrations or partial pressures of the substances present e.g. Raoult's law. Deviations from ideality are accommodated by modifying the concentration by an activity coefficient.

Properties
qudt:plainTextDescription
An "Activity Coefficient" is a factor used in thermodynamics to account for deviations from ideal behaviour in a mixture of chemical substances. In an ideal mixture, the interactions between each pair of chemical species are the same (or more formally, the enthalpy change of solution is zero) and, as a result, properties of the mixtures can be expressed directly in terms of simple concentrations or partial pressures of the substances present e.g. Raoult's law. Deviations from ideality are accommodated by modifying the concentration by an activity coefficient.
qudt:latexDefinition
$f_B = \frac{\lambda_B}{(\lambda_B^*x_B)}$, where $\lambda_B$ the absolute activity of substance $B$, $\lambda_B^*$ is the absolute activity of the pure substance $B$ at the same temperature and pressure, and $x_B$ is the amount-of-substance fraction of substance $B$.
Annotations
rdfs:comment
Applicable units are those of quantitykind:ActivityCoefficient
dcterms:description
An "Activity Coefficient" is a factor used in thermodynamics to account for deviations from ideal behaviour in a mixture of chemical substances. In an ideal mixture, the interactions between each pair of chemical species are the same (or more formally, the enthalpy change of solution is zero) and, as a result, properties of the mixtures can be expressed directly in terms of simple concentrations or partial pressures of the substances present e.g. Raoult's law. Deviations from ideality are accommodated by modifying the concentration by an activity coefficient.
rdfs:label
Activity Coefficient(en)
View as:  CSV

Work in progress

RDF/XML
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    <rdfs:comment>Applicable units are those of quantitykind:ActivityCoefficient</rdfs:comment>
    <j.0:symbol>f_B</j.0:symbol>
    <j.0:plainTextDescription>An "Activity Coefficient" is a factor used in thermodynamics to account for deviations from ideal behaviour in a mixture of chemical substances. In an ideal mixture, the interactions between each pair of chemical species are the same (or more formally, the enthalpy change of solution is zero) and, as a result, properties of the mixtures can be expressed directly in terms of simple concentrations or partial pressures of the substances present e.g. Raoult's law. Deviations from ideality are accommodated by modifying the concentration by an activity coefficient. </j.0:plainTextDescription>
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    <j.0:latexDefinition rdf:datatype="http://qudt.org/schema/qudt/LatexString">$f_B = \frac{\lambda_B}{(\lambda_B^*x_B)}$, where $\lambda_B$ the absolute activity of substance $B$, $\lambda_B^*$ is the absolute activity of the pure substance $B$ at the same temperature and pressure, and $x_B$ is the amount-of-substance fraction of substance $B$.</j.0:latexDefinition>
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TURTLE
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@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

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  <http://qudt.org/schema/qudt/latexDefinition> "$f_B = \\frac{\\lambda_B}{(\\lambda_B^*x_B)}$, where $\\lambda_B$ the absolute activity of substance $B$, $\\lambda_B^*$ is the absolute activity of the pure substance $B$ at the same temperature and pressure, and $x_B$ is the amount-of-substance fraction of substance $B$."^^<http://qudt.org/schema/qudt/LatexString> ;
  <http://qudt.org/schema/qudt/plainTextDescription> "An \"Activity Coefficient\" is a factor used in thermodynamics to account for deviations from ideal behaviour in a mixture of chemical substances. In an ideal mixture, the interactions between each pair of chemical species are the same (or more formally, the enthalpy change of solution is zero) and, as a result, properties of the mixtures can be expressed directly in terms of simple concentrations or partial pressures of the substances present e.g. Raoult's law. Deviations from ideality are accommodated by modifying the concentration by an activity coefficient. " ;
  <http://qudt.org/schema/qudt/symbol> "f_B" ;
  rdfs:comment "Applicable units are those of quantitykind:ActivityCoefficient" ;
  rdfs:isDefinedBy <http://qudt.org/2.1/vocab/quantitykind> ;
  rdfs:label "Activity Coefficient"@en ;
.
JSON
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    ,"description (plain text)":"An \"Activity Coefficient\" is a factor used in thermodynamics to account for deviations from ideal behaviour in a mixture of chemical substances. In an ideal mixture, the interactions between each pair of chemical species are the same (or more formally, the enthalpy change of solution is zero) and, as a result, properties of the mixtures can be expressed directly in terms of simple concentrations or partial pressures of the substances present e.g. Raoult's law. Deviations from ideality are accommodated by modifying the concentration by an activity coefficient. " 
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    ,"normative reference (ISO)":"http:\/\/www.iso.org\/iso\/catalogue_detail?csnumber=31894" 
    ,"symbol":"f_B" 
    ,"type":"qudt:QuantityKind" 
    ]}
JSON-LD
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