chapter 2: matter. changes of state when matter changes from one state to another, we call this a...
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CHAPTER 2: MATTER
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CHANGES OF STATE
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• 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
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• 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
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• 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
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• Kinds of Vaporization• Boiling• Evaporation• Sublimation
Vaporization and Condensation
pp. 41-432.18PHYSICAL SCIENCE
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• Condensation: vapor cools and changes to liquid
• Deposition: vapor becomes a solid
Vaporization and Condensation
pp. 41-432.18PHYSICAL SCIENCE