What is activation Energy? Relate if with rate constant. - Vidyadip

Question

What is activation Energy? Relate if with rate constant.

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Answer

Activation Energy : Activation energy is the difference between the threshold energy and the average kinetic energy of the reactant molecules.
Activation Energy $=$ Threshold Energy - Average Kinetic Energy of Molecules.
Relation with rate constant
$k= A e^{- E _\alpha / RT }$
where $k=$ rate constant, $E _a=$ Activation Energy

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