Term: weak collision
https://doi.org/10.1351/goldbook.W06665

Definition:
A collision between two molecules in which the amount of energy transferred from one to the other is not large compared to kB.T (kB is the Boltzmann constant and T the absolute temperature).

Related Terms:
1) boltzmann constant (http://doi.org/10.1351/goldbook.B00695).
2) strong collision (http://doi.org/10.1351/goldbook.S06059).

Source: PAC, 1996, 68, 149. 'A glossary of terms used in chemical kinetics, including reaction dynamics (IUPAC Recommendations 1996)' on page 191 (https://doi.org/10.1351/pac199668010149)

Citation: 'weak collision' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.W06665

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