<P> Activation energy can be thought of as the magnitude of the potential barrier (sometimes called the energy barrier) separating minima of the potential energy surface pertaining to the initial and final thermodynamic state . For a chemical reaction, or diffusion to proceed at a reasonable rate, the temperature of the system should be high enough such that there exists an appreciable number of molecules with transnational energy equal to or greater than the activation energy . </P> <P> The term Activation Energy was introduced in 1889 by the Swedish scientist Svante Arrhenius . </P> <P> The Arrhenius equation gives the quantitative basis of the relationship between the activation energy and the rate at which a reaction proceeds . From the equation, the activation energy can be found through the relation </P> <Dl> <Dd> k = A e − E a / (R T) (\ displaystyle k = Ae ^ ((- E_ (\ textrm (a))) / ((RT)))) </Dd> </Dl>

Is delta g the same as activation energy