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Can a reaction have zero activation ener...

Can a reaction have zero activation energy ?

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If `E_(a)=0`, then according to Arrhenius equation, `k=e^(-E_(a)//RT)="A e"^(0)=A,` i.e., Rate constant = collision frequency. This means every collision results into a chemical reaction which cannot be true. Hence, `E_(a)ne0`.
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