Metabolics

Full Member
5+ Year Member
Apr 17, 2012
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virginia
Hey,

Does a catalyst really affect the rate constant, or just increase the rate?

I know you've seen the Arrhenius equation on the activation energy, and that catalysts lower the activation energy...

However, do catalysts actually decrease the k or do they provide a new, separate rate constant and provide a new mechanism that adds to the original rate (k0[A])?

For MCAT purposes, does a catalyst increase k or just introduce a new mechanism with a different k that adds to the rate?
 
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