Energy profile diagram for an exothermic reaction, A \overset{1}{\rightarrow} B \overset{2}{\rightarrow} C \overset{3}{\rightarrow} D, is given below. The rate determining step of the reaction is :

Engineering

Chemistry

Reaction Mechanism and Molecularity

Question

Energy profile diagram for an exothermic reaction, $A \overset{1}{\to} B \overset{2}{\to} C \overset{3}{\to} D$ , is given below.
The rate determining step of the reaction is :

A → B

B → C

C → D

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In a chemical reaction, the overall rate of a reaction is determined by the slowest step, known as the rate determining step. The rate equation is simplified by using the approximation of rate determining step. Since, the slowest step in this reaction is when it has highest potential energy. Thus the rate determining step of reaction is A → B.

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