In a multistep chemical process, the rate-limiting step is the step in the reaction with the :

Highest activation energy & fastest reaction rate

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Highest activation energy & slowest reaction rate

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Lowest activation energy & fastest reaction rate

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Lowest activation energy & slowest reaction rate

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Greatest concentration of the reactants and products

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Solution

The correct option is A Highest activation energy & slowest reaction rate
The rate determining step is the slowest step of a chemical reaction that determines the speed (rate) at which the overall reaction proceeds. The rate determining step can be compared to the neck of a funnel. In above above plot step $A$ is rate determining step.

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Similar questions

A \to B i s E_{a}

A \to B

E_{a}

k_{1}

E_{a_{1}} = 180 k J / m o l

k_{2}

E_{a_{2}} = 80 k J / m o l

k_{3}

E_{a_{3}} = 50 k J / m o l

k = {(\frac{k_{1} k_{2}}{k_{3}})}^{2 / 3}

K_{1}, K_{2}

K_{3}

K = \frac{K_{1}^{3 / 2} K_{3}^{2 / 3}}{K_{2}^{1 / 4}}

50, 500

90 k J

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