The Kinetic Molecular Theory of Matter
Learning Targets
1.State the kinetic-molecular theory of matter and describe how it explains certain properties of matter. 2.List the 5 assumptions of the kinetic-molecular theory of gases. 3.Describe and give examples of each of the following characteristic properties of gases: expansion, density, fluidity, compressibility, diffusion and effusion. 4.Describe the conditions under which a real gas deviates from "ideal" behavior.
Describe and give examples of each of the following characteristic properties of gases: expansion, density, fluidity, compressibility, diffusion and effusion.
Expansion- A gas transferred from a 1 liter container to a 2 liter container will quickly expand. Fluidity- Ability for a gas or liquid to flow. Density- In a gaseous state it is 1/1000 the density of the same substance in the liquid or solid state. Compressibility- Gas particles are pulled closer together. Diffusion and Effusion- Spontaneous mixing and movement.
List the 5 assumptions of the kinetic-molecular theory of gases.
Gases consist of large numbers of tiny particles that are far apart relative to their size. Collisions between gas particles and between particles and container walls are elastic collisions. Gas particles are in constant, rapid, random motion. They therefore possess kinetic energy, which is energy of motion. There are no forces of attraction or repulsion between gas particles. The average kinetic energy of gas particles depends on the temperature of the gas.
State the kinetic-molecular theory of matter and describe how it explains certain properties of matter.
Kinetic Molecular Theory of Matter- is based on the idea that particles of matter are always in motion. It describes properties of matter for solids, liquids, and gases in terms of the energy of particles and the forces that act between them.
Describe the conditions under which a real gas deviates from "ideal" behavior.
When the particles of the real gas occupy space and exert attractive forces on each other.