For the reaction 3 A \to 2 B, rate of reaction +\frac{d[B]}{d t} is equal to

Correct Answer is : −23d[A]dt

\frac{-3}{2} { {\d}[ {\A}]}/{ {\dt}}

\frac{-2}{3} { {\d}[ {\A}]}/{ {\dt}}

\frac{-1}{3} { {\d}[ {\A}]}/{ {\dt}}

CBSE Class 12 Chemistry 2023 Outside Delhi Set 1 Solved Paper

Question : 12 of 35

Marks: +1, -0

For the reaction

3 A → 2 B

, rate of reaction

+\;{d[B]}/{d t}

is equal to

Solution:

3 {A} \→2 {B}

-{1}/{3} {{d}[{A}]}{{dt}}={1}/{2} {{d}[{B}]}/{{dt}}

(b)

-{2}/{3} {{d}[{A}]}/{{dt}}

\⇒ {+{d}[{B}]}/{{dt}}=-{2}/{3} {{d}[{A}]}/{{dt}}

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