Gaw Laws

Boyles Law

• Volume and Pressure are Inversely related.

Combined Gas Law

• Takes Boyle's and Charles's Laws and combines them.
• In most situations, Volume, Pressure, and Temperature change.

The three things that affect gas pressure are

• Temperature
• Volume
• Number of Particles

Gaw Laws

Pressure is...

• Force over a given area.
• SI unit for force and area is N/m2 or Pascal abbreviated Pa.
• We will use atm. (WRITE THIS DOWN!)

Gases fill containers of any size because

1. Particles are in constant random motion.

2. Gas particles are far apart and have fewer or less collisions (ex. diffusion).

3. The forces of attraction in gas particles is negligible (ignorable).

The collisions of gas particles push against the wall of each other and walls of a closed container create "pressure."

Kinetic Theory

The constant motion of particles in a gas allow it to fill the container of any size.

Charles' Law

This explains how Temperature affects volume.

• Volume and Temperature are directly related!

What is temperature and how does it change energy?

• The average kinetic energy of the particles that make up an object
• The higher the temperature the more the energy.
• The more the energy the more collisions (the cases administer)
• The more the impacts of collisions the more the pressure exerted.