Virial coefficients

{
  "id": "MLC-T-CHM-012585",
  "term": "Virial coefficients",
  "field": "Chemistry",
  "definition": "Coefficients in the virial expansion, which is a power series used to express the deviation of a real gas from ideal gas behavior. These coefficients account for the interactions between molecules, with the second virial coefficient describing pairwise interactions and higher-order coefficients describing interactions among larger groups of molecules. They are temperature-dependent and can be used to determine intermolecular potentials.",
  "subject": "Physical and Biophysical Chemistry",
  "see_also": [
    "gas constant",
    "thermodynamic temperature"
  ],
  "references": [
    "Green Book, 2nd ed., p. 49 (https://goldbook.iupac.org/files/pdf/green_book_2ed.pdf)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/virial-coefficients/"
}