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Matthews HC1: Unit 7

resource for honors chem 1 students

Unit 7

States of Matter and Gas Laws

Learning Targets

I can ______.

  1. Explain, in terms of collision theory why gas pressure increases when volume decreases.
  2. Explain, in terms of collision theory why gas pressure increases when it is heated in a rigid container.
  3. Explain, in terms of collision theory, why a balloon expands if it is heated.
  4. Explain why the Kelvin scale must be used for gas calculations instead of the Celsius scale.
  5. Solve a series of gas law problems involving any of the following formulas:
  • P1V1 = P2V2           
  • P1/T1  = P2 / T2                         
  • V1/T1  =  V2/T2         
  • P1V1/T1  = P2V2/T2                 
  • PV = nRT                          
  1. Determine the mole fraction and partial pressure of a gas in a mixture.
  2. Apply Avogadro’s Hypothesis to solve a problem involving samples of gas at the same temperature and pressure.
  3. Explain how the speeds of gases differ in a mixture.
  4. Identify a gas by applying Graham’s Law.
  5. Solve a problem involving an open manometer.

Class Presentation