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CHAPTER 2: MATTER. CHANGES OF STATE When matter changes from one state to another, we call this a phase change Thermal energy is related to the microscopic.

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Presentation on theme: "CHAPTER 2: MATTER. CHANGES OF STATE When matter changes from one state to another, we call this a phase change Thermal energy is related to the microscopic."— Presentation transcript:

1 CHAPTER 2: MATTER

2 CHANGES OF STATE

3 When matter changes from one state to another, we call this a phase change Thermal energy is related to the microscopic random variations and motions of the particles of matter Temperature and Changes of State pp. 39-402.16PHYSICAL SCIENCE

4 Melting: change from solid to liquid Temperature: melting point Freezing: change from liquid to solid Temperature: freezing point Melting and Freezing p. 402.17PHYSICAL SCIENCE

5 Any process resulting in a solid or liquid substance changing directly to gas The rate of vaporization refers to how fast liquid water changes to a gas Vapor pressure Vaporization and Condensation pp. 41-432.18PHYSICAL SCIENCE

6 Kinds of Vaporization Boiling Evaporation Sublimation Vaporization and Condensation pp. 41-432.18PHYSICAL SCIENCE

7 Condensation: vapor cools and changes to liquid Deposition: vapor becomes a solid Vaporization and Condensation pp. 41-432.18PHYSICAL SCIENCE

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