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Physical Properties of Matter

Physical Properties of Matter 6.P.2.3 How and Why does matter have Physical Properties? How are those properties used? What are their physical properties?. Physical Properties of Matter can be observed or measured without changing the composition of matter

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Physical Properties of Matter

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  1. Physical Properties of Matter 6.P.2.3 How and Why does matter have Physical Properties? How are those properties used? What are their physical properties?

  2. Physical Properties of Matter can be observed or measured without changing the composition of matter are used to observe, describe, and identify matter some properties are appearance, texture, color, odor, melting point, boiling point, density, solubility does not depend on the amount of the matter

  3. Vaporization -change from liquid to a gas -takes place when particles in a liquid gain enough energy to form a gas. -two types are evaporation and boiling

  4. Evaporation takes place only on the surface of a liquid Boiling occurs when a liquid changes to a gas below its surface as well as at the surface.

  5. Boiling point- the temperature at which the liquid boils at sea level (1 atmosphere) • 1 atmosphere is the pressure of all the air in our atmosphere at sea level • if pressure is increased or decreased, the boiling point can change Water boils at 95 ̊C in the mountains because there is less air pressure

  6. Maximum Condensing Temperature - the temperature at which a cooling medium changes phases from a gas to a liquid • the boiling point is the same as the maximum condensing temperature for any substance

  7. Melting point -is the temperature at which matter changes state from solid to liquid freezing point -is the temperature at which matter changes state from liquid to solid • melting and freezing points are the same temperature since they are the reverse of each other • each type of matter has its own melting and freezing point

  8. and Condensing temperature and Melting point • Temperature stays constant (same) during • state of changes

  9. Solution -fluid with substance dissolved in it solute -a substance dissolved in another substance solvent -a substance in which other substances are dissolved

  10. solubility -means the amount of solute that can be dissolved in a specific volume of solvent under certain conditions • the most common solvent is water • a solute’s solubility depends on the chemical nature and temperature of the solvent • higher temperatures allow more solute to dissolve in solvent

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