Phase Change Diagram (Energy Removed From Substance) printable pdf download

Phase Change Diagram (Energy Removed From Substance)

Name ____________________________ Date _________ Period ___

Phase Change Diagram (Energy Removed from Substance)

Phase Change Diagram for

Liquid “X”

Energy being removed

1.) What is the temperature of the freezing point of this substance? ___________

2.) What is the temperature of the condensation point of this substance? ___________

3.) Is energy being added or removed in order to cause the phase changes shown in the graph? _______

4.) Between which two letters is the substance 100% liquid? _________

5.) What is the actual temperature of the melting point of this substance? ____________

6.) What letter represents the point where condensation first begins? __________

7.) What letter represents the point where freezing first begins? ___________

8.) Between which two letters on the graph is the substance a solid? ______________

9.) Between which letters on the graph is the substance a gas that is cooling?

______________

10.) Between which two letters on the graph is the substance 100% vapor? ____________

Endothermic means heat is going into a substance

Exothermic means heat is leaving a substance

11.)Is freezing an endothermic or exothermic process? _______________

12.) Is condensation an endothermic or exothermic process? ______________

13.) What is sublimation? ____________________________________________________________

14.) What is the word used to describe water (or any liquid) changing from a liquid to a gas “below its

boiling point”? ________________________________

Phase Change Diagram (Energy Removed From Substance)