1. Behavior of Gases

2. Pressure
Pressure- the amount of force exerted per unit of area.

3. P = F / A Pressure = Force / Area
Formula for Pressure
P = F / A
Pressure = Force / Area
Atmosphere puts a pressure on everything within it.

4. Pressure vs. Altitude
As altitude increases the pressure decrease.
(As altitude ↑, pressure ↓)

5. Boyle’s Law
Boyle’s Law- as volume of a gas decreases, the pressure increases.
(As volume ↓, pressure ↑)
Temperature must be the same.

6. Boyle’s Law
Balloon in a small box.

7. Charles’s Law
Charles’s Law- As volume of a gas increases, the temperature increases.

8. (As volume ↑,
temperature ↑)
Pressure must be the same
(If volume ↓, then temp. ↓)

9. Charles’s Law Ex:
Ex: Hot-Air Balloon

10. By using this, Charles’s calculate the temperature which the volume of gas would be zero.
The temperature is -273°C or absolute zero.