Matthews HC1: Unit 7

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                          

6. Determine the mole fraction and partial pressure of a gas in a mixture.
7. Apply Avogadro’s Hypothesis to solve a problem involving samples of gas at the same temperature and pressure.
8. Explain how the speeds of gases differ in a mixture.
9. Identify a gas by applying Graham’s Law.
10. Solve a problem involving an open manometer.