
Interpretation:
The ratio of concentration of product 1 to product 2 whether increases or decreases with temperature that has to be determined for a reaction showing kinetic control of product and one product has more activation energy than the other.
Concept Introduction:
Arrhenius equation:
Arrhenius equation gives the temperature dependence of reaction rates. It can be represented as,
Where,
A is the pre-exponential factor
T is temperature
R is the Universal gas constant
Kinetic control:
In some reactions the reactants give rise to various products. Here the reactions considered are,
Now the rate of formation of
Now the rate of formation of
The relative proportion in which two products have been produced at a given stage of reaction before it reaches equilibrium is given by the ration of the two rates. This ratio is known as kinetic control over the proportions of the products.
Hence the kinetic control for the reaction is,

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Chapter 6 Solutions
Elements Of Physical Chemistry
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