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In a reaction if the concentration of reactant A is tripled, the rate of reaction becomes twenty seven times. What is the order of the reaction? - Chemistry

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Question

In a reaction if the concentration of reactant A is tripled, the rate of reaction becomes twenty seven times. What is the order of the reaction?

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Solution

Rate = `k[A]^alpha`   .....(i)

27 × Rate = `k[3A]^alpha` .....(ii)

Dividing equation (ii) by equation (i), we get α = 3

∴ Order of reaction = 3

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Chapter 4: Chemical Kinetics - Exercises [Page 55]

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NCERT Exemplar Chemistry [English] Class 12
Chapter 4 Chemical Kinetics
Exercises | Q III. 37. | Page 55

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