Which out of molarity or molality will change with change in temperature and why ?

Explanation

To determine which of molarity or molality changes with temperature and why, we need to understand the definitions and the factors affecting each.

### Step-by-Step Solution:

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

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