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Mixed Gas Law Calculations

Mixed Gas Law Calculations. Objectives: Today I will be able to: Apply Boyle, Charles, Gay-Lussac and the Combined gas law to solving problems Informal assessment – monitoring student interactions and questions as they complete the practice problems

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Mixed Gas Law Calculations

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  1. Mixed Gas Law Calculations

  2. Objectives: • Today I will be able to: • Apply Boyle, Charles, Gay-Lussac and the Combined gas law to solving problems • Informal assessment – monitoring student interactions and questions as they complete the practice problems • Formal assessment – analyzing student responses to the practice problems and exit ticket • Common Core Connection • Make sense of problems and persevere in solving them • Reason abstractly and quantitatively

  3. Lesson Sequence • Evaluate: Warm – Up • Engage/Elaborate: PTV Card • Elaborate: Mixed Gas Law Problems • Evaluate: Exit Ticket

  4. Warm - Up • 4 balloons are filled with different gases. • Balloon one has hydrogen • Balloon two has helium • Balloon three has nitrogen • Balloon four has oxygen • Which balloon do you expect to rise the fastest and why? • Which balloon(s) will not rise? Why? • Be sure to explain your answers using the gas laws

  5. Objectives • Today I will be able to: • Apply Boyle, Charles, Gay-Lussac, Combined, Ideal and Graham’s gas law to solving problems

  6. Homework • Finish practice problems

  7. Agenda • Warm Up • PTV Card • Mixed Gas Law Problems • Exit Ticket

  8. PTV Card Take an index card and write the letters P, T, V over the hole punch

  9. Now we will use our PTV card to answer questions

  10. Example Questions • How does the pressure of a system change when the temperature is increased and the volume is held constant? • At constant temperature, what happens to the volume of the system as pressure is increased? • At constant pressure, how does the temperature change as the volume decreases?

  11. Mixed Gas Law Problems Complete the practice problems at your desk. If you have questions, ask Ms. Ose for help.

  12. Exit Ticket • Which problem was most challenging on the worksheet • What strategies did you use to determine which gas law you needed to use to solve the problem?

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