Boyle’s Law and Charles’ Law

What are these Laws all about? These Laws Define the behavior of Gases.

Pressure Defined as: The amount of force exerted per unit of area. P=F/A Pressure only occurs when the gas particles collide with another object. The more collision the more pressure. What are 2 ways to create more collisions? (Therefore more pressure)

To Create More collisions Increase the number of gas particles. Example: Air Pressure Decrease the size of the container. Example: Boyles Law

Boyles Law If the Volume of a gas DECREASES, the Pressure of the gas will INCREASE, as long as the temperature does not change. INCREASE Volume = DECREASE Pressure with Temperature CONSTANT.

Boyles’s Law Example:

Charles’ Law The Volume of a gas will INCREASE as Temperature INCREASES as long as Pressure does not change. Also true in reverse.

Charles’ Law Example

To Help you Remember: Just think of: P T V