Standard entropy of activation

{
  "id": "MLC-T-CHM-011290",
  "term": "Standard entropy of activation",
  "field": "Chemistry",
  "definition": "The change in entropy when reactants transform into the activated complex, with all species in their standard states. This thermodynamic quantity provides insight into the structural and organizational changes that occur during the formation of the transition state. A negative value suggests a more ordered transition state compared to the reactants.",
  "subject": "Physical and Biophysical Chemistry",
  "see_also": [
    "entropy",
    "standard reaction quantities"
  ],
  "references": [
    "Green Book, 2nd ed., p. 57 (https://goldbook.iupac.org/files/pdf/green_book_2ed.pdf)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/standard-entropy-of-activation/"
}