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Karnataka Board PUCPUC Science 2nd PUC Class 12

State a condition under which a bimolecular reaction is kinetically first order reaction.

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Question

State a condition under which a bimolecular reaction is kinetically first order reaction.

Short Answer
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Solution

Let us consider a biomolecular reaction:

\[\ce{A + B -> Product}\]

Rate = k[A] [B]   ...(i)

When concentration of [B] is taken in large excess, rate law will become Rate = k'[A]

Where, k' = k[B]

The order of reaction will be equal to one.

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Chapter 4: Chemical Kinetics - Exercises [Page 55]

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NCERT Exemplar Chemistry Exemplar [English] Class 12
Chapter 4 Chemical Kinetics
Exercises | Q III. 33. | Page 55
Nootan Chemistry [English] Class 12 ISC
Chapter 3 Chemical Kinetics
REVIEW EXERCISES | Q 4.63 | Page 243

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