Arrhenius equation

Empirical relationship that give the dependence of the rate constant k of a chemical reaction on the absolute temperature T.

Source:Wikipedia en

Formula

\mathbf{k=A.\exp\Big(-\frac{E_a}{R.T}\Big)} where k is the speed coefficient, Ea the activation energy of the reaction in J.mol-1, A the preexponential factor, R the perfect gas constant and T the temperature in Kelvins.