State+Changes+Graph

Prof Dave [|Phase Change Graph] https://www.youtube.com/watch?v=jOVyyi-eo4w https://www.youtube.com/watch?v=JR44Url3vtY

[|Boiling Water at Room Temperature]

Heating Curve A beaker of ice at – 10°C was slowly heated to 110°C. The graph show how the temperature of water changed over time.

1. What two variables are potted on the graph?

2. What is happening to the temperature of the water during segment C of the graph?

3. What does the temperature value for segment B Represent? For segment D?

4. What change of state is occurring during segment B of the graph? During segment D?

5. In which segment, A or E, do the water molecules have more thermal energy? Explain your reasoning.