Order of reaction

{
  "id": "MLC-T-CHM-008300",
  "term": "Order of reaction",
  "field": "Chemistry",
  "definition": "The exponent to which the concentration of a reactant is raised in the experimentally determined rate law for a chemical reaction. It indicates how the reaction rate depends on the concentration of that specific reactant. The overall order of reaction is the sum of the individual orders with respect to each reactant, and it can be an integer, a fraction, or zero.",
  "subject": "Physical and Biophysical Chemistry",
  "see_also": [
    "chemical flux",
    "chemical species",
    "elementary reaction",
    "kinetic equivalence",
    "line-shape analysis",
    "molecularity",
    "rate of reaction",
    "stepwise reaction",
    "stoichiometric",
    "stoichiometric number"
  ],
  "references": [
    "Green Book, 2nd ed., p. 55 (https://goldbook.iupac.org/files/pdf/green_book_2ed.pdf)",
    "PAC, 1993, 65, 2291. 'Nomenclature of kinetic methods of analysis (IUPAC Recommendations 1993)' on page 2296 (https://doi.org/10.1351/pac199365102291)",
    "PAC, 1994, 66, 1077. 'Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994)' on page 1147 (https://doi.org/10.1351/pac199466051077)",
    "PAC, 1996, 68, 149. 'A glossary of terms used in chemical kinetics, including reaction dynamics (IUPAC Recommendations 1996)' on page 176 (https://doi.org/10.1351/pac199668010149)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/order-of-reaction/"
}