Kinetic vs. Thermodynamic Control: Effects on Product Ratios
Published by There are many things that can effect the outcome of a chemical reaction, in order to understand why the outcomes are what they are a simple understanding of Kinetics and Thermodynamics is needed. This is because Kinetic and Thermodynamic properties of a reaction govern the rate and equalibria.
There are many things that can effect the outcome of a chemical reaction, in order to understand why the outcomes are what they are a simple understanding of Kinetics and Thermodynamics is needed. This is because Kinetic and Thermodynamic properties of a reaction govern the rate and equalibria.
Thermodynamic Control
A reaction is considered under Thermodynamic control when its product ratios depend on the product energies/stabilities. This is called Thermodynamic control because the product ratios reflect their thermodynamic stabilities.
- Thermodynamic Controlled reactions are reversible and at equilibrium.
Kinetic Control
A reaction is considered under Kinetic control when the product ratio depends on the rates of competing reactions. This is called Kinetic control because the product ratio reflects the kinetic nature of the two reactions.
- Kinetic Controlled reactions are not reversible and not at equilibrium.
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On February 21, 2011 at 3:38 am
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On February 21, 2011 at 6:23 am
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On March 16, 2011 at 9:55 am
Hi, although this article is informative, I believe the diagram really does not do justice to the topic. I believe that the energy profile diagram should look more to form either kinetic or thermodynamic product as can be seen here.