1. Boyle’s Law and Charles’ Law
Gas Laws for Physical Science

2. Boyle's Law states that the volume of a sample of gas is inversely proportional to the pressure applied to the gas if the temperature is kept constant.
Boyles Law
As the pressure increases by a factor of 2, the volume decreases by ½. (½ is the inverse of 2.)

3. Graphical Representation

4. Boyles Law in Action What it looks like:

5. Charles Law
Charles's Law states that the volume of a sample of gas is directly proportional to its Kelvin temperature if the pressure is constant. If the temperature increases by a factor of 2, the volume will increase by a factor of 2.

6. Graphical Representation

7. Charles Law in Action What Charles Law looks like:

8. FORMULAS: V1 T1 V2 T2 = V1 P1 V2 P2 = Charles’ Law:
Relates Temperature and Volume. V1 T1 V2 T2 =
Boyle’s Law:
Relates Pressure and Volume V1 P1 V2 P2 = x

9. Calculations Video: Boyles Law and Charles Law
4 minutes 20 seconds
Gay-Loussac’s Law follows (90 seconds)
Combined Boyles and Charles Law (90 seconds more)