List the various differences between Order and Molecularity of a reaction

Answer:

The molecularity of a reaction represents the number of atoms, molecules, or ions that will interfere with each other for the chemical reaction to occur within a limited time frame. The main differences between order and order of reaction are given below.

Molecularity

Order

The number of ions or molecules that take part in the rate-determining step is known as molecularity. The sum of powers to which the reactant concentrations are raised in the rate law equation is known as the order of the reaction.
The molecularity of a reaction is a whole number other than zero. Its values are limited from 1 to 3. It can either be a whole number or a fraction. Therefore, it can be 0, 1, 2, 3 or even a fraction.
The molecularity of the reaction is determined by looking at the reaction mechanism The order of the reaction is determined by the experimental methods
The molecularity of the reaction is obtained by the rate-determining step The order of the reaction is obtained by the sum of the powers to which the reactant concentrations are raised in the rate law equation

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