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Behavior of Gasses

Behavior of Gasses. Read p.70-71. What makes gas particles different from solids and liquids? There is lots of space between the particles What is the space that gas particles occupy called? Volume What causes a change in the pressure of a gas? Temperature and pressure. Boyle’s Law.

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Behavior of Gasses

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  1. Behavior of Gasses

  2. Read p.70-71 • What makes gas particles different from solids and liquids? • There is lots of space between the particles • What is the space that gas particles occupy called? • Volume • What causes a change in the pressure of a gas? • Temperature and pressure

  3. Boyle’s Law • Read the paragraph on Boyle’s Law on p.72 • Describe Boyle’s Law • The volume of gas is inversely proportional to its pressure. • Pressure goes up, volume goes down. • Volume goes up, the pressure goes down. • The Ideal Gas Law

  4. Charles’s Law • Read p.72 • Describe Charles’s Law • When the temperature increases, so does the volume. • If the temperature decreases, so does the volume • Charles's Law Experiment

  5. Changes of State • Skim through pages 74-79 • List the 5 changes of state • Melting: solid to liquid • Freezing: liquid to solid • Evaporation: liquid to gas • Condensation: gas to liquid • Sublimation: solid to gas

  6. Read p.74 • Define change of state. • The change of a substance from one physical form to another • What must happen to change from one state to another? • You must add or remove energy

  7. Read p.75 • What is melting? • The change of state from a solid to a liquid • What is a melting point? • It is the temperature in which a solid will melt • What type of property is a melting point? • Physical property

  8. Continued • What is the changing of state from a liquid to a solid? • Freezing • What must be removed for something to freeze? • Energy • What type of change is freezing? • Exothermic

  9. Read p.76 • What is evaporation? • The change of a substance from a liquid to a gas • What is boiling? • The change of a liquid to a vapor • What is the temperature at which a liquid boils? • Boiling point

  10. Read p.77 • As you increase in atmospheric pressure, the temperature at which water boils ________. • Decreases • What is condensation? • The temperature at which gas becomes a liquid • What must happen for a gas to become a liquid? • Particles must clump together

  11. Read p.78 • What is sublimation? • The change of state in which a solid changes directly into a gas • Why Is sublimation an endothermic change? • Because energy is gained

  12. Draw these • Figure 1 p.74 • Figure 3 p.76

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