Fugacity

{
  "id": "MLC-T-CHM-004694",
  "term": "Fugacity",
  "field": "Chemistry",
  "definition": "A thermodynamic property that represents the 'effective partial pressure' of a real gas in a mixture, or a component in a solution, accounting for non-ideal behavior. It is a measure of the escaping tendency of a substance from a phase. For an ideal gas, fugacity is equal to its partial pressure.",
  "subject": "Physical and Biophysical Chemistry",
  "see_also": [
    "absolute activity"
  ],
  "references": [
    "Green Book, 2nd ed., p. 50 (https://goldbook.iupac.org/files/pdf/green_book_2ed.pdf)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/fugacity/"
}