Steady state

{
  "id": "MLC-T-CHM-011348",
  "term": "Steady state",
  "field": "Chemistry",
  "definition": "A condition in a system where all macroscopic properties, such as concentrations, temperatures, or pressures, remain constant over time, even though microscopic processes may still be occurring. In a chemical reaction, this implies that the rates of formation and consumption of intermediates are equal. This differs from equilibrium, where net change ceases.",
  "synonyms": [
    "stationary state",
    "steady state approximation",
    "steady state treatment",
    "Bodenstein approximation"
  ],
  "subject": "Analytical Chemistry",
  "see_also": [
    "chemical species",
    "elimination",
    "flow reactor",
    "rate law",
    "rate of reaction",
    "sequence",
    "unstable"
  ],
  "references": [
    "PAC, 1993, 65, 2373. 'Nomenclature for liquid-liquid distribution (solvent extraction) (IUPAC Recommendations 1993)' on page 2390 (https://doi.org/10.1351/pac199365112373)",
    "PAC, 1994, 66, 1077. 'Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994)' on page 1166 (https://doi.org/10.1351/pac199466051077)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/steady-state/"
}