Solubility of `KNO_3`

Options

A. increases with temperature
B. decreases with temperature
C. remains constant with temperature
D. is not related to the temperature fluctuations.

Explanation

To determine the solubility of KNO3 (potassium nitrate) in relation to temperature, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Solubility**:
- Solubility refers to the maximum amount of a solute (in this case, KNO3) that can dissolve in a solvent (usually water) at a given temperature.

2. **Temperature Effect on Solubility**:
- Generally, the solubility of most solids, including KNO3, increases with an increase in temperature. This means that as the temperature rises, more KNO3 can dissolve in the same amount of water.

3. **Analyzing the Options**:
- The question provides four options regarding the solubility of KNO3 with respect to temperature:
- A) Increases with temperature
- B) Decreases with temperature
- C) Remains constant with temperature
- D) Is not related to temperature fluctuations

4. **Selecting the Correct Option**:
- Since we established that the solubility of KNO3 increases with temperature, we can conclude that option A is correct.

5. **Conclusion**:
- Therefore, the solubility of KNO3 increases with temperature.

### Final Answer:
- The solubility of KNO3 increases with temperature (Option A).