Equilibrium reaction

{
  "id": "MLC-T-CHM-004068",
  "term": "Equilibrium reaction",
  "field": "Chemistry",
  "definition": "A reaction whose reactants start with a Boltzmann distribution of energies, so its rate constant is the thermally averaged one; this contrasts with non-equilibrium cases such as chemically activated molecules, whose energy distribution is not thermal. Everyday usage also applies the phrase to a reversible reaction at chemical equilibrium, where forward and reverse rates are equal and concentrations stay constant.",
  "subject": "Physical and Biophysical Chemistry",
  "see_also": [
    "non-equilibrium reaction"
  ],
  "references": [
    "PAC, 1996, 68, 149. 'A glossary of terms used in chemical kinetics, including reaction dynamics (IUPAC Recommendations 1996)' on page 165 (https://doi.org/10.1351/pac199668010149)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/equilibrium-reaction/"
}