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Exploring States of Matter Vocabulary and Phase Changes

Learn about the properties of solid, liquid, and gaseous phases along with essential terms like temperature, heat, fusion, vaporization, and more. Discover the fascinating world of phase changes and the science behind them.

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Exploring States of Matter Vocabulary and Phase Changes

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  1. Solid phase (s): Strong attractive forces hold particles in fixed location. Regular definite geometric shape; crystallineLiquid phase (l): Particles have mobility; sufficient attractive forces to give liquids a definite volume.Gaseous phase (g): Particles have minimal attractive forces holding them together. No definite volume or shape. States of Matter

  2. Vocabulary • Temperature: A measure of the average kinetic energy of its particles. (°C or K) • Heat: a measure of the amount of energy transferred from one substance to another. (J) • Heat of fusion: The amount of heat needed to convert a unit mass of a substance from solid to liquid at its melting point. (Hf) • Heat of vaporization: The amount of heat needed to convert a unit mass of a substance from its liquid phase to its vapor phase at constant temperature. (Hv)

  3. Phase Changes Fusion: Melting; when particles have enough potential energy to break foa’s holding them together. Freezing: liquid to solid (solidification) Vaporization: Boiling; When particles have enough kinetic energy to enter the gas phase. Condensation: gas to liquid Sublimation: solid to gas Deposition: gas to solid

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