# Arrhenius Equation

The Arrhenius equation describes the temperature (T) dependence of the rate constant, k, for an activated process that must overcome an activation energy barrier, Q. A is the pre-exponential factor and R is the gas constant. This equation is used to characterize the kinetics of many metallurgical and materials engineering processes.

To learn more about the Arrhenius equation and transformations in materials see MTGN348 Microstructural Development taught by Prof. Liu