1. Chapter 3 Review

2. Boyle’s Law states that at a _______________ temperature, the _______________ will increase when the ________________ decreases.

3. Constant
Volume
Pressure

4. What is the reverse of Condensation?

5. Evaporation

6. What happens to the particles in a liquid when it becomes a gas
What happens to the particles in a liquid when it becomes a gas? A) The particles give off energy B) The particles break away from each other C) The particles move closer together D) The particles slow down

7. Answer: the particles break away from each other

8. Charles’s Law states that when the temperature of a gas _______________, the volume ______________.

9. Increases

10. The melting point of certain substances is equal to it’s _______________ point.

11. Freezing

12. A change in which energy is gained by the substance as it changes state

13. endothermic

14. Change of state from a solid to a liquid
Change of state from a liquid to a gas- occurs at the surface
Change of state from a liquid to a gas throughout the liquid
Change of state from a gas to a liquid
Change of state from a solid directly to a gas
Change of state from a liquid to a solid

15. Melting
Evaporation
Boiling
Condensation
Sublimation
Freezing

16. A change in which energy is removed from a substance as it changes state

17. Exothermic

18. Liquids that flow slowly have a _____________ _______________ Liquids that flow quickly have a ______________ _____________

19. high Viscosity low Viscosity

20. This type of solid has a distinct melting point and occur in regular repeating patterns
This type of solid has no distinct melting point, they gradually melt and have no regular repeating patterns

21. Crystalline solids
Amorphous solids

22. When discussing the “Behavior of Gases”, what 3 measurements are used?

23. Temperature
Pressure
Volume

24. What temperature does water boil at sea level?
If you are at a higher altitude, is the boiling point higher or lower than at sea level?

25. 100 degrees Celcius
Water boils at a lower temperature when you are at a higher altitude (elevation)

26. What changes of states are considered an endothermic change
What changes of states are considered an endothermic change? Remember in endothermic changes, energy is being put INTO!!!
What changes of state are considered an exothermic change? Remember in exothermic changes, energy is being taken OUT!!!

27. Evaporation and Melting
Condensation and Freezing

28. What is determined by the speed of molecules?

29. Temperature

30. This force acts on the particles of liquid, it causes water droplets to form

31. Surface Tension