@prefix isq: <https://w3id.org/standards/isq/ontologies/core/> .
@prefix smart: <https://example.org/smart-sdu/> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix dcterms: <http://purl.org/dc/terms/> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .

<isq:t9-20>
  a isq:Entry ;
  rdf:type isq:Quantity ;
  rdf:type smart:TermEntry ;
  dcterms:identifier "9-20" ;
  skosxl:prefLabel "fugacity"@en ;
  skosxl:altLabel "tilde p_\"X\""@en ;
  skos:definition "for substance stem:[\"X\"], quantity proportional to the absolute activity, stem:[lambda_\"X\"] (<<t9-18>>), the proportionality factor, which is a function of temperature (<<iso80000-5>>) only, being determined by the condition that, at constant temperature and composition, stem:[p_\"X\"//tilde p_\"X\"] tends to 1 for an indefinitely dilute gas"@en ;
  smart:hasBindingnessType "bindingness-type:normative" ;
  dcterms:isPartOf <isq:part-9> ;
  isq:hasUnit [
    skos:notation "Pa" ;
    skosxl:prefLabel "pascal"@en
  ] ;
  isq:hasUnit [
    skos:notation "kg*m^(-1)*s^(-2)" ;
    skosxl:prefLabel "kilogram per metre second squared"@en
  ] ;
  skos:note "IUPAC preferred symbol is stem:[f].\n\n[stem%unnumbered]\n++++\ntilde p_\"X\" = lambda_\"X\" * lim_(p -> 0)(p_\"X\"//lambda_\"X\")\n++++\n\nwhere stem:[p] is total pressure (<<iso80000-4>>).\n\nThe IUPAC preferred symbol for fugacity is stem:[f].\n"@en ;
  iso:urn <urn:iso:std:iso:80000:-9:ed-2:en:item:9-20> .