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Effect of catalyst on rate constants

Posted: Tue Mar 06, 2018 11:22 pm
by Virpal Gill 1B
Can someone explain the effect of a catalyst on rate constants?

Re: Effect of catalyst on rate constants

Posted: Tue Mar 06, 2018 11:52 pm
by Chem_Mod
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.