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# Activation energy rate constant calculator

At o C the rate constant was found to be x M-1 s Calculate the a) activation energy and b) high temperature limiting rate constant for this reaction. Answer: All reactions are activated processes. Rate constant is exponentially dependent on the Temperature. Temperature has a profound influence on the rate of a reaction. Arrhenius showed that the rate constant (velocity constant) of a reaction increases exponentially with an increase in temperature. Here 'A' is called the 'pre-exponent factor' or the 'frequency factor' and E A is the activation energy of the chemical process (reaction). The activation energy is the amount of energy required to ensure that a reaction happens. This calculator calculates the effect of temperature on reaction rates using the Arrhenius equation. k=A*exp (-E a /R*T) where k is the rate coefficient, A is a constant, E a is the activation energy, R is the universal gas constant, and T is the.