Question

The activation energy of a non-catalysed reaction at 37°C is 200 kcal/mol and the activation energy of the same reaction when catalysed decreases to only 6.0 kcal/mol. Calculate the ratio of rate constants of the two reactions.

Answer 1

We know that :

k = Ae^-ea/RT

Let k = rate constant for non-catalysed reaction and kc rate constant for catalysed reaction. Let Ea be the activation energy for non-catalysed reaction and Eac be the energy of activation of catalysed reaction.