Difference between k and k'

[Janelle2E]

What's the difference between k and k' in k= k' / [B]^M [C]^L?

[906013563]

k: overall rate constant for the reaction as it appears in the rate law. The rate law correlates the rate of the reaction to the concentrations of the reactants raised to some power.
k'= a modified or complex rate constant. It could be a composite constant that includes the effects of intermediates, catalysts, or reverse reactions in equilibrium reactions. It may also be used when the rate law involves a more complex relationship with the reactants.

[Jolene Robles 2H]

K is the rate at which a reaction occurs, it is a constant that relates to the concentrations of reactants to the rate of the reaction while k prime is a mixture of different things such a catalyst and intermediate molecules, it is a change/mixture of multiple substance that are not constant which is why it is denoted by the prime symbol.