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Special Catalysts & Reactions

Posted: Sun Mar 05, 2017 9:58 pm
by Jasmine_Brownfield_3E
Are there any known reactions for which a certain catalyst completely removes a pre-existing activation energy barrier?

Re: Special Catalysts & Reactions

Posted: Sun Mar 05, 2017 10:14 pm
by Natassia Dunn 3G
I'm not 100% sure, but I believe that all reactions require a minimum amount of energy, even if it is extremely small.

Re: Special Catalysts & Reactions

Posted: Sun Mar 05, 2017 10:19 pm
by Theresa 1H
I don't know any, but I think it is relative to the how much energy is needed for the reaction (if it is endothermic).

I think we only need to know that Catalyst speed up the reaction by lowering the activation energy, so that more reactant has the energy to overcome the barrier and become the product.

Re: Special Catalysts & Reactions

Posted: Mon Mar 06, 2017 11:49 am
by Chem_Mod
No, you still need energy to get the catalyst to interact with the reagents so there will always be an energy barrier.