What is the difference between the order of a reaction and its molecularity ?

Explanation

To understand the difference between the order of a reaction and its molecularity, we can break it down into several key points:

### Step-by-Step Solution:

1. **Definition of Order of Reaction**:
- The order of a reaction is defined as the sum of the powers of the concentration terms in the rate law expression. For example, if the rate law is given by:
\[
\text{Rate} = k[A]^m[B]^n
...