KMT22222222222222222222222222222224.pptx

Kinetic Molecular Theory

1. Kinetic Molecular Theory of Gases

2. Explains the properties of gases and describes the behavior of gases. Participate in class activity and class discussion, and Take and pass the mastery level of 75%. OBJECTIVES

3. Kinetic Molecular Theory of Gases states that: Gases are composed of molecules. The distances from one molecule to another molecule are far greater than the molecules’ dimensions. These molecules can be considered as spherical bodies which possess negligible mass and volume. Gas molecules are always in constant random motion and they frequently collide with one another and with the walls of the container. Collision among molecules are perfectly elastic, that is, energy may transfer from molecule to molecule as the result of collision but the total energy of all the molecules in the system remains the same/constant.

4. 3. There is a neither attractive nor repulsive force between or among gas molecules. 4. Movement of gas molecules is affected by temperature. The molecules move faster as the temperature increases. This is due to heat that is converted to KE energy of molecules. As the molecules absorb more KE, they move faster and bump the walls of the container causing it to expand, the material is elastic.

5. Solid Liquid Gas

6. Activity Directions. Answer the following questions on your answer sheet. How do you explain the relationship of volume and pressure using the Kinetic Molecular Theory? ____________________________________________________ How do you explain the relationship of volume and temperature using the Kinetic Molecular Theory? _____________________________________________________

7. 1. What have you learned today? 2. What are some of the daily situations and activities observed at home and the community that involves the properties of gases? Cite examples. ESSAY

8. END