CHEM101: General Chemistry I

5.1: Gases and Gas Laws

• 5.1.1: Gas Phase Properties

  • Stephen Lower's "General Chemistry Virtual Textbook: Observable Properties of Gases"

    Read this webpage. Understanding how pressure, temperature, and volume of a gas differ from those of forces that exist within solids and liquids will be fundamental for understanding the upcoming subunits of this course.
    

• 5.1.2: Ideal Gas Laws

  • Khan Academy: "Ideal Gas Laws Series" Page

    Watch these five lectures to prepare yourself for the following reading assignment.
    

  • Stephen Lower's "General Chemistry Virtual Textbook: The Basic Gas Laws"

    Read this webpage. Ideal gas laws are laws that apply to gases that behave "ideally," when molecules take up no volume and have no attractive forces between one another. In the real world, however, no gas behaves ideally. However, gases are closest to being ideal when they are high-temperature and low-pressure.
    

• 5.1.3: Molar Applications and Partial Pressure

  • Khan Academy: "Partial Pressure" Page

    Watch this video first to prepare for the following reading assignment. A key concept here is that a mixture has a total pressure that is the sum of its component, or partial, pressures. 
    

  • Stephen Lower's "General Chemistry Virtual Textbook: Moles, Mixtures, and Densities"

    Read this webpage, which covers molar properties of gases and partial pressures. After reading this section, you should understand what happens to scuba divers who suffer from nitrogen narcosis, or "the bends."
    

• 5.1.4: Kinetic-Molecular Theory of Gas

  • Stephen Lower's "General Chemistry Virtual Textbook: Molecules in Motion: Introduction to Kinetic-Molecular Theory"

    Read this webpage. Kinetic molecular theory (KMT) explains the properties of gas molecules and their motion. KMT helps explain how radio waves are transmitted, as well as why the sky is blue.