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States of Matter Notes

Chemical and physical properties and changes are explored

Devin Weiss

on 13 January 2017

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Transcript of States of Matter Notes

It Matters Random Motion Changes in Matter Particles move in any direction and can have different speeds. Solids Solid is matter with a fixed shape and a fixed volume. Liquids Liquid is matter with a fixed volume but not a fixed shape. Gas Solid is matter that has NO fixed shape and NO fixed volume. Moving objects have more kinetic energy than non-moving objects- They have more kinetic energy. Which of these has more Kinetic energy? Measuring Kinetic Energy Temperature is a measurement of average kinetic energy of the particles in a material. Potential energy is stored energy--energy ready to go. Thermal Energy Thermal Energy includes both the kinetic and potential energy Solids: Movement (kinetic)? Distance apart (potential)? Gases: Movement (kinetic)? Distance apart (potential) low potential = little movement = low kinetic close together low potential = Low Thermal Energy low kinetic + high potential = a lot of movement = high kinetic Far apart high potential = High Thermal Energy high kinetic + Changes between solid and liquid Melting: Freezing: Melting point is the temperature in which material changes from solid to liquid Opposite of melting. Changes between Liquids and Gases Vaporization: Boiling: When attractive forces between particles are too weak to keep particles close to each other The releasing of these particles in a liquid is known as boiling. Matter that boils at a certain temerature is known as boiling point. Changes between Liquid and gas Evaporation: Condensation: Particles at the surface of liquids break away as they move faster due to thermal energy. The particles that remain have less kinetic energy. Air contains water. these water particles in the air condenses as thermal energy is removed as they cool. Changes between solids and gas Sublimation: Deposition: The change of a solid to gas without turning to liquid. The change of gas to a solid without turning to liquid.
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