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Karnataka Board PUCPUC Science 2nd PUC Class 12

From the rate expression for the following reaction, determine the order of reaction and the dimension of the rate constant. 3NO⁢𝐴(g)N⁢𝐴2⁢O⁢𝐴(g) Rate = k[NO]2 - Chemistry

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Question

From the rate expression for the following reaction, determine the order of reaction and the dimension of the rate constant.

\[\ce{3NO_{(g)} -> N2O_{(g)}}\] Rate = k[NO]2

Numerical
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Solution

Given rate = k[NO]2

Therefore, the order of the reaction = 2

Dimension of k = \[\ce{\frac{Rate}{[NO2]}}\]

= \[\ce{\frac{(mol L^{-1} s^{-1})}{(mol L^{-1})^2}}\]

= \[\ce{\frac{(mol L^{-1} s^{-1})}{(mol^2 L^{-2})}}\]

= L mol−1 s−1

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Chapter 3: Chemical Kinetics - Exercises [Page 85]

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NCERT Chemistry Part 1 and 2 [English] Class 12
Chapter 3 Chemical Kinetics
Exercises | Q 3.1 (i) | Page 85

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