Question

What is the difference between order of reaction & molecularity of reaction

Answer 1

The order of reaction is obtained from the rate law of reaction. The difference between molecularity and order of reaction is that molecularity is a theoretical concept whereas order of reaction is determined experimentally.

I hope this ans help you

Answer 2

$\huge\mathbf\orange{{♡ANSWER♡}}$

$\large\mathbf\red{{ ORDER OF A REACTION}}$

$\pink\longmapsto\:$ The sum of the powers of concentration terms in the rate law expression.

$\green\longmapsto\:$ Order of a reaction can be determined experimentally.

$\blue\longmapsto\:$ it can be a zero or fraction.

$\red\longmapsto\:$ It is applicable to elementary and also complex reactions.

$\orange\longmapsto\:$ Negative order reaction is possible.

$\large\mathbf\pink{{MOLECULARITY OF A REACTION}}$

$\pink\longmapsto\:$ The number of molecules present in the rate determining step of reaction.

$\green\longmapsto\:$ Molecularity of a reaction can be determined theoretically.

$\blue\longmapsto\:$ It cannot be a zero or fraction.

$\red\longmapsto\:$ It can be applicable to only elementary reactions.

$\orange\longmapsto\:$ Molecularitt can never be negative.

$\large\mathcal\pink{{♡hope this will help you♡}}$