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Ch. 8 - Solids, Liquids, & Gases
MATTER Ch. 8 - Solids, Liquids, & Gases II. Changes in State (p ) Phase Changes Heating Curves
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melting point = freezing point
A. Phase Changes Melting solid to liquid Freezing liquid to solid melting point = freezing point
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A. Phase Changes Vaporization (boiling)
liquid to gas at the boiling point Evaporation liquid to gas below the boiling point Condensation gas to liquid
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A. Phase Changes Sublimation solid to gas
EX: dry ice, freeze drying, iodine
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A. Phase Changes
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B. Heating Curves Kinetic Energy motion of particles
related to temperature Potential Energy space between particles related to phase changes
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B. Heating Curves Gas - KE Boiling - PE Liquid - KE
Melting - PE Solid - KE
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B. Heating Curves Heat of Fusion
energy required to change from solid to liquid some attractive forces are broken
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B. Heating Curves Heat of Vaporization
energy required to change from liquid to gas all attractive forces are broken EX: steam burns, sweating, and… the drinking bird HEATING CURVE
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