Lesson 9 Kinetic-Molecular Theory of Gases handout(1).pdf - ChE102 The Kinetic-Molecular Theory of Gases(Section 6.7 in Petrucci et al The ideal gas law

Lesson 9 Kinetic-Molecular Theory of Gases handout(1).pdf -...

This preview shows page 1 - 2 out of 3 pages.

ChE102 May 24, 2016 The Kinetic-Molecular Theory of Gases (Section 6.7 in Petrucci et. al.) The ideal gas law is an empirical model for the behavior of gases based on experimental observations. The kinetic-molecular theory is a model that provides theoretical justification for the ideal gas law. The model is based on the following assumptions: Molecular size is negligible compared with the distance that separates the molecules of a gas. Gas molecules are always moving with a distribution of molecular speeds. There are no intermolecular forces. The only interaction between molecules is during molecular collisions. Collisions of molecules with the wall of a container are elastic; no kinetic energy is lost during the collision. Today we will use these assumptions to derive the kinetic-molecular theory of gases! Imagine a cube containing gas molecules. We’ve discussed earlier that pressure arises from the force imposed by molecules colliding with the walls of the container.

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture