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Properties of Matter II

Explore the characteristic properties of substances regardless of their volume or mass. Learn about the different states of matter, mass, weight, volume, density, boiling point, freezing point, and the difference between intensive and extensive properties.

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Properties of Matter II

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  1. Properties of Matter II LEQ: What characteristic properties do substances have regardless of their volume or mass?

  2. What is Matter? • Matter is anything made up of atoms (or atomic parts) • Matter is anything that has mass! • Remember three states of matter are: • Solid • Liquid • Gas • Plasma is the fourth state, but we will not worry about this!

  3. Properties of Matter • All matter is classified based off the following properties: • Mass: Measure of the amount of matter present. • Weight: Measure of gravitational force on matter. • MASS AND WEIGHT ARE NOT THE SAME!!!!!!! • Mass is constant through the universe (the amount of matter does not change), weight changes depending on gravity. • On Earth, my weight and mass are both 56.7 Kg…On the moon my mass is still 56.7Kg, but my weight would only be 9.7 Kg!

  4. Properties of Matter (cont) • Volume: Measurement of how much space matter occupies. • Density: Measurement of mass (matter) relative to volume. D=mass/volume • Which is more dense? Why?

  5. Properties of Matter (cont) • Boiling Point: The temperature where the liquids vapor pressure equals the environmental pressure. • Temperature where liquid turns to gas. • Freezing Point (Melting Point): Temperature where liquid turns to solid (or where solid turns to liquid)

  6. Graph of Phase Changes (Showing Melting Point)

  7. Intensive vs. Extensive • Intensive properties of matter DO NOT depend on the amount of matter present! • I can have any amount of the substance and these properties stay the same! • Extensive properties of matter Do depend on the amount of matter present! • The amount of matter changes the property!

  8. Intensive vs. Extensive • Name the following properties of matter as INTENSIVE or EXTENSIVE. • Boiling Point, Weight, Density, Volume, Mass, Freezing Point, Melting Point • Intensive: Boiling Point, Melting Point, Freezing Point, Density (mass and volume keep the same proportion) • Extensive: Volume, Mass, Weight

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