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- 1. Multiple Choice
What line segment represents only the solid state? (Diagram F)
A-B
B-C
C-D
D-E
- 2. Multiple Choice
Between which points is the temperature of the substance remaining constant? (Diagram F)
A-B only.
A-B, C-D, E-F
B-C only.
B-C, D-E
- 3. Multiple ChoiceTrue or false: melting and freezing occur at the same temperature!TrueFalseI don't know
- 4. Multiple Choice
A substance's heating curve is shown in the graph. What is its boiling point? (Diagram B)
100 C
60 C
80 C
20 C
- 5. Multiple Choice
Are the particles moving faster or slower as time goes on? (Diagram F)
Faster
Slower
- 6. Multiple Choice
Is the substance gaining or losing energy? (Diagram D)
Gaining
Losing
- 7. Multiple Choice
Which line segment demonstrates vaporization occurring? (Diagram E)
B-C
C-D
D-E
E-F
- 8. Multiple Choice
What phase change is occurring at line segment B-C if the graph is exothermic? (Diagram E)
melting
freezing
boiling
condensation
- 9. Multiple Choice
How long does it take this substance to change from a liquid to a gas? (Diagram E)
1 minute
2 minutes
10 minutes
15 minutes
- 10. Multiple Choice
What will occur when the substance transitions from B to A? (Diagram A)
condensation
evaporation
melting
freezing
- 11. Multiple Choice
What will occur when the substance changes from 1 atm to 30 at a constant temperature of -15oC? (Diagram A)
condensation
deposition
melting
sublimation
- 12. Multiple Choice
What will occur when the substance changes from 0o C to 100oC at a constant pressure of 30 atm? (Diagram A)
condensation
evaporation
melting
freezing
- 13. Multiple ChoiceWhat happens when thermal energy is taken away from particles?They move faster and farther apartThey move slower and closer together
- 14. Multiple ChoiceDuring a phase change, the temperatureincreasesdecreasesfluctuatesstays the same
- 15. Multiple Choice
What is the normal boiling point of this substance? (Diagram C)
150 °C
100 °C
-50 °C
0 °C
- 16. Multiple Choice
What is the normal melting point of this substance? (Diagram C)
150 °C
100 °C
-50 °C
0 °C
- 17. Multiple Choice
What is point A? (Diagram C)
triple point
critical point
equilibrium point
normal melting point
- 18. Multiple Choice
**An ice cube feels cold when we hold it. Which of the following best explains why?
Heat moves from our hands into the ice cube.
Cold moves from our hands into the ice cube.
Heat moves from the ice cube into our hands.
Cold moves from the ice cube into our hands.
- 19. Multiple Choice
What type of process is happening as one moves along line segment B toward the right? (Diagram F)
An endothermic Process
An exothermic Process
The calorimetry process
Nuclear fusion
- 20. Multiple ChoiceAt higher temperaturesparticles in an object have less energyparticles in an object move fastera gas contracts
- Answer choicesTagsAnswer choicesTags