In this lesson our instructor talks about gases. First, he discusses the kinetic molecular theory of gases, parameters to characterize gases, and the simple gas laws. Then he talks about the ideal gas law, applications of the ideal gas law, gas pressures, partial pressures, and gas stoichiometry. He ends the lesson with a summary and two helpful sample problems . Gases The Kinetic Molecular Theory of gases are (5) postulates which describe gas behavior. Any gas that is assumed to follow this theory is called an ideal gas. A series of gas laws relates the gas parameters pressure, temperature, volume and moles to each other holding all else constant. The ideal gas law can be used to interpret gas density and its relationship with temperature. We can apply stoichiometry techniques to reactions involving gases.