Number density

{
  "id": "MLC-T-CHM-008157",
  "term": "Number density",
  "field": "Chemistry",
  "definition": "The number of specified entities per unit volume, often used to describe the concentration of particles in a gas, liquid, or solid. It is a fundamental quantity in statistical mechanics and kinetic theory. For an ideal gas, the number density is directly proportional to pressure and inversely proportional to temperature.",
  "subject": "Physical and Biophysical Chemistry",
  "references": [
    "Green Book, 2nd ed., p. 39 (https://goldbook.iupac.org/files/pdf/green_book_2ed.pdf)",
    "PAC, 1990, 62, 2167. 'Glossary of atmospheric chemistry terms (Recommendations 1990)' on page 2183 (https://doi.org/10.1351/pac199062112167)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/number-density/"
}