frequency factor

This term is a specialized technical constant used exclusively within the field of chemical kinetics, specifically regarding the Arrhenius equation. It describes the pre-exponential factor that accounts for both the total number of collisions per unit time and the steric factor, which is the requirement that molecules collide in a specific geometric orientation to successfully react.

In a laboratory or theoretical context, it is treated as a constant for a specific reaction at a given state. Because it is a specific scientific parameter, it is rarely used outside of chemistry or physics textbooks and research papers.