Under what condition will the molaity of a solute not be equal to its molarity ?

Explanation

To determine the condition under which the molality of a solute will not be equal to its molarity, we need to understand the definitions of both terms and how they relate to the properties of the solution.

### Step-by-Step Solution:

1. **Define Molarity (M)**:
Molarity is defined as the number of moles of solute per liter of solution. The formula for molarity is:
\[
M = \frac{\text{moles of solute}}{\text{volume of solution in liters}}
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