Relaxation

{
  "id": "MLC-T-CHM-010171",
  "term": "Relaxation",
  "field": "Chemistry",
  "definition": "The process by which a system returns to its equilibrium state after being perturbed. This involves the dissipation of excess energy or the redistribution of populations among energy levels. Relaxation phenomena are often characterized by specific time constants, such as spin-lattice relaxation time (T1) or spin-spin relaxation time (T2) in nuclear magnetic resonance.",
  "subject": "Physical and Biophysical Chemistry",
  "see_also": [
    "chemical relaxation",
    "temperature jump"
  ],
  "references": [
    "PAC, 1993, 65, 2291. 'Nomenclature of kinetic methods of analysis (IUPAC Recommendations 1993)' on page 2297 (https://doi.org/10.1351/pac199365102291)",
    "PAC, 1994, 66, 1077. 'Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994)' on page 1160 (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 185 (https://doi.org/10.1351/pac199668010149)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/relaxation/"
}