Gibbs energy of activation

{
  "id": "MLC-T-CHM-004877",
  "term": "Gibbs energy of activation",
  "field": "Chemistry",
  "definition": "The difference in Gibbs energy between the transition state and the reactants in a chemical reaction. It represents the minimum energy barrier that must be overcome for the reaction to proceed. This thermodynamic quantity is directly related to the rate constant of a reaction through the Eyring equation.",
  "synonyms": [
    "standard free energy of activation"
  ],
  "subject": "Physical and Biophysical Chemistry",
  "see_also": [
    "Boltzmann constant",
    "Gibbs energy",
    "Planck constant",
    "activation",
    "elementary reaction",
    "enthalpy of activation",
    "entropy of activation",
    "ground state",
    "order of reaction",
    "standard state",
    "stepwise reaction",
    "transition state"
  ],
  "references": [
    "PAC, 1994, 66, 1077. 'Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994)' on page 1118 (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 166 (https://doi.org/10.1351/pac199668010149)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/gibbs-energy-of-activation/"
}