non-equilibrium reaction

https://doi.org/10.1351/goldbook.N04192
If the reactants in a chemical reaction are not initially present in a Boltzmann distribution the reaction is referred to as a non-@E02184@.
See:
equilibrium reaction
Source:
PAC, 1996, 68, 149. (A glossary of terms used in chemical kinetics, including reaction dynamics (IUPAC Recommendations 1996)) on page 175 [Terms] [Paper]