Unit 8 - Gases

Unit objectives

At the completion of this unit, students will be able to

1. Explain how the Kinetic Molecular Theory describes the behavior of gases (diffusion, effusion, compressibility, expansion, fluidity, low density).

2. Explain the relationship between temperature and average kinetic energy, and justify why the Kelvin temperature scale is used to describe gases.

3. Convert temperature readings in Celsius to Kelvin and vice versa.

4. Identify real gases that behave like ideal gases under specific conditions.

5. Explain the relationship between the pressure, volume, and temperature of a gas (Boyle’s, Charles’, & Gay-Lussac’s Laws), supported by the kinetic molecular theory.

6. Perform calculations using the combined and ideal gas laws to solve for pressure, volume, temperature, and number of moles of a gas (density and molar mass, too, for level 5, only).

7. Explain Dalton’s Law of Partial Pressures and be able to calculate partial pressures