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Chemistry Content Unit – SCH3U Gases

Chemistry Content Unit – SCH3U Gases. Daniel Hickie , Efi Palvanov , Jason Fischer, David Sheps. Minds-On. Kinetic Molecular Theory FUN!!! !  ( f3.3 use the kinetic molecular theory to explain the properties and behaviour of gases in terms of types and degrees of molecular motion ).

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Chemistry Content Unit – SCH3U Gases

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  1. Chemistry Content Unit – SCH3U Gases Daniel Hickie, EfiPalvanov, Jason Fischer, David Sheps

  2. Minds-On Kinetic Molecular Theory FUN!!!!  (f3.3 use the kinetic molecular theory to explain the properties and behaviour of gases in terms of types and degrees of molecular motion )

  3. Overall Expectations F1. analyse the cumulative effects of human activities and technologies on air quality, and describe some Canadian initiatives to reduce air pollution, including ways to reduce their own carbon footprint F2. investigate gas laws that explain the behaviour of gases, and solve related problems F3. demonstrate an understanding of the laws that explain the behaviour of gases.

  4. Gases: Location in the course and Prior Knowledge Location in the course: After Unit D (Quantities in chemical reactions) Should come after Unit E (solutions) but doesn’t absolutely have to. Prior knowledge:Changes of state (Previous years)Mole/Stoichiometry (Unit D)Temperature scales (Previous years)Sig Figs (Grade 10)

  5. Gases: Guiding Questions Overarching Question: How can we use our understanding of the physical and chemical properties of gases to explain natural phenomena in, and assess human impact on, the atmosphere, in both local and global contexts?

  6. Gases: Guiding Questions 1. How can we use models such as kinetic molecular theory to distinguish the physical properties of molecules in gaseous state from those in solids and liquids? 2. What are the qualitative and quantitative relationships between pressure, volume, temperature, and mass of a gas? 3. How can we use stoichiometry and the variable physical properties of gases to quantitatively predict the outcome of chemical reactions involving gases? 4. What are some of the social, technological, and environmental considerations related to gas and atmospheric chemistry?

  7. Student Misconceptions About Gases • Gases have no mass, change of state to gas involves loss • of mass, air (the atmosphere) exerts no pressure • KMT, e.g., heating a gas causes molecules to expand, or • relocate to top of vessel • Misunderstanding concept of temperature; unable to • distinguish molecular velocity and average kinetic energy • of a gas • Students apply molar volume at STP (22.4 L/mol) to • problems where conditions are not at STP

  8. STSE Blog http://feelinggassy.wordpress.com

  9. Activity

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