Collision number

{
  "id": "MLC-T-CHM-002226",
  "term": "Collision number",
  "field": "Chemistry",
  "definition": "The total number of collisions occurring per unit volume per unit time between all molecules in a system. This macroscopic quantity is derived from the collision frequency of individual molecules and the total number density of the gas. It is a key parameter in understanding the kinetics of gas-phase reactions.",
  "subject": "Physical and Biophysical Chemistry",
  "see_also": [
    "collision density"
  ],
  "references": [
    "Green Book, 2nd ed., p. 56 (https://goldbook.iupac.org/files/pdf/green_book_2ed.pdf)",
    "PAC, 1996, 68, 149. 'A glossary of terms used in chemical kinetics, including reaction dynamics (IUPAC Recommendations 1996)' on page 160 (https://doi.org/10.1351/pac199668010149)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/collision-number/"
}