Answer
The Arrhenius equation describes the temperature dependence of the rate constant for a chemical reaction. The equation is: k = Ae^-Ea/RT where k is the rate constant, A is the pre-exponential factor, Ea is the activation energy, R is the gas constant, and T is the temperature. The Arrhenius equation is a fundamental equation in physical chemistry, and it is used to predict the rate of many different chemical reactions.