1. Notes #2: Boyles & Charles Laws
WCHS Chemistry
YOU NEED A CALCULATOR!

3. Air Bubbles
Dolphins
Syringe

4. BOYLE’S LAW
= The volume of a gas increases as the external pressure decreases
Ex: Bubbles rising in a pool
Ex: A syringe

5. P____ means V _____ & P____ means V _____
BOYLE’S LAW
P____ means V _____ & P____ means V _____
External
External
Boyle’s Equation: P1V1 = P2V2
Volume Units = Liters (L)! Be careful of mL!
Pressure Units = atmospheres (atm) or Torr
Atmospheres = Torr
760

6. Hot Air Balloon

7. CHARLES’ LAW
= As the temperature of a gas increases, the volume increases (and vise versa)
Ex: Inflating a hot air balloon
Ex: Balloon in a freezer

8. CHARLES’ LAW
T____ means V _____ & T____ means V _____
Charles’ Equation: V1 = V2 T1 T2
Volume Units = Liters (L)! Be careful of mL!
Temperature Units = Kelvin (K)
Kelvin = oC + 273