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Kinetics vs Thermodynamics

Posted: Sun Mar 04, 2018 4:14 pm
by itzeelpadillaDis1A
What does in mean when kinetics is controlling the reaction rather then thermodynamics?

Re: Kinetics vs Thermodynamics

Posted: Sun Mar 04, 2018 4:23 pm
by Bansi Amin 1D
It depends on what the reaction is dependent upon and based off of that, which pathway the reaction will take.The kinetic pathway is the easiest pathway. A kinetically controlled reaction will be faster and when compared to a thermodynamic pathway, the products are less stable. The activation energy of the kinetically controlled reaction has been lowered from the thermodynamically controlled one.

Re: Kinetics vs Thermodynamics

Posted: Sun Mar 04, 2018 5:03 pm
by Leah Savage 2F
Why has the activation energy been lowered?

Re: Kinetics vs Thermodynamics

Posted: Sun Mar 04, 2018 5:12 pm
by Scott Chin_1E
I think Professor Lavelle used the example of diamond being thermodynamically favored to become a different product (though I'm not too sure what that was), however, we know that diamond does not indeed undergo this reaction because it requires a high amount of activation energy to overcome the energy barrier for the reaction to occur.

So in this way, kinetics moreso determines whether the reaction will occur rather than thermodynamics.

Re: Kinetics vs Thermodynamics

Posted: Tue Mar 06, 2018 5:49 pm
by Leah Savage 2F
So if a reaction happens really slowly, is this the case where kinetics rather than thermodynamics controls the rxn?