## Effect of catalyst on rate constants

Arrhenius Equation: $\ln k = - \frac{E_{a}}{RT} + \ln A$

Virpal Gill 1B
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### Effect of catalyst on rate constants

Can someone explain the effect of a catalyst on rate constants?

Chem_Mod
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### Re: Effect of catalyst on rate constants

An catalyst will lower the activation energy of a reaction. Remember from the Arrhenius expression that the rate constant depends on the activation energy, among other variables. A catalyst will affect both the rate and the rate constant for a given reaction.