1. Physical Characteristics of Gases Chapter 10.1 The Kinetic – Molecular Theory of Matter

2. Objectives: State the kinetic-molecular theory of matter, and describe how it explains certain properties of matter. List the five assumptions of the kinetic-molecular theory of gases. Define the terms ideal gas and real gas. Describe each of the following characteristic properties of gases: expansion, density, fluidity, compressibility, diffusion, and effusion. Describe the conditions under which a real gas deviates from “ideal” behavior.

5. m is mass of particle

6. v is it’s speed

8. The expand to fill container and take it’s shape and volumeKinetic-moleculartheory Gas particles move rapidly in all directions (assumption 3) without significant attraction or repulsion between them ( assumption 4)

14. Most likely holds true for:

15. Particles that have little attraction

16. Ex: He, Ne ( monatomic and nonpolar)

17. Ex: N2, H2 ( diatomic and nonpolar)

18. Gases more likely to deviate from ideal gas behavior

19. Ex: NH3, H2O (Polar molecules) stronger attractions