Kinetics vs Thermodynamics

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itzeelpadillaDis1A
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Kinetics vs Thermodynamics

Postby itzeelpadillaDis1A » Sun Mar 04, 2018 4:14 pm

What does in mean when kinetics is controlling the reaction rather then thermodynamics?

Bansi Amin 1D
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Re: Kinetics vs Thermodynamics

Postby Bansi Amin 1D » Sun Mar 04, 2018 4:23 pm

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.

Leah Savage 2F
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Re: Kinetics vs Thermodynamics

Postby Leah Savage 2F » Sun Mar 04, 2018 5:03 pm

Why has the activation energy been lowered?

Scott Chin_1E
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Re: Kinetics vs Thermodynamics

Postby Scott Chin_1E » Sun Mar 04, 2018 5:12 pm

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.

Leah Savage 2F
Posts: 74
Joined: Fri Sep 29, 2017 7:06 am

Re: Kinetics vs Thermodynamics

Postby Leah Savage 2F » Tue Mar 06, 2018 5:49 pm

So if a reaction happens really slowly, is this the case where kinetics rather than thermodynamics controls the rxn?


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