The phase change diagram for water illustrates key temperature regions and corresponding phases or phase changes. It includes freezing/melting points, solid, liquid, boiling point, and the gaseous phase, providing insights into water's behavior across temperature variations.
To match each number or temperature on the graph with the appropriate phase or phase change, you can use the following key:
1. **Region 1: -10 to 0 °C**
- **Match:** d. melting/freezing point
- **Explanation:** This region represents the temperature range where water transitions between the solid (ice) and liquid phases.
2. **Region 2: 0 to 0 °C**
- **Match:** a. solid
- **Explanation:** This region represents the temperature at which water exists solely in the solid (ice) phase.
3. **Region 3: 0 to 100 °C**
- **Match:** b. liquid
- **Explanation:** This region represents the temperature range where water is in the liquid phase.
4. **Region 4: 100 to 100 °C**
- **Match:** e. boiling point
- **Explanation:** This region represents the temperature at which water transitions from the liquid to the gaseous phase.
5. **Region 5: 100 to 120 °C**
- **Match:** c. gas
- **Explanation:** This region represents the temperature range where water exists solely in the gaseous phase.
By associating the temperature ranges with the appropriate phases or phase changes, you can understand the behavior of water under different conditions.