This behavior is observed for many ionic compounds, including KNO3. In general, the higher the temperature of the solvent, the more solute can be dissolved. This is because the solvent molecules have more energy and are able to break apart the solute particles more effectively, allowing them to dissolve.
The solubility of KNO3 in water at different temperatures is as follows:
- At 0°C, the solubility of KNO3 is approximately 133 grams per 100 grams of water.
- At 20°C, the solubility of KNO3 is approximately 198 grams per 100 grams of water.
- At 100°C, the solubility of KNO3 is approximately 316 grams per 100 grams of water.
The relationship between temperature and solubility can be expressed using the following equation:
```
S = k * T
```
where:
- S is the solubility of the solute in grams per 100 grams of solvent
- k is a constant
- T is the temperature in degrees Celsius
