1. Gas Variables

2. Pressure Force Pressure = Area
Vacuum space void of all matter and therefore pressure
Force
Area
Pressure =
Units
1 pascal (Pa) = 1 N/m2
1 atm = 760 mmHg = 760 torr = kPa
Barometer is an instrument used for measuring atmospheric pressure.

3. Atmospheric pressure is the pressure exerted by Earth’s atmosphere.
10 miles
0.2 atm
Depends on location, temperature, and weather conditions
4 miles
0.5 atm
Sea level
1 atm

4. Dimensional Analysis
Convert 2.5 atm into torr, mmHg and kPa

5. Temperature
Absolute zero is the lowest temperature theoretically possible; point at which there is no molecular motion.
K = °C + 273

6. Amount of space an object or substance takes up (3D)
Volume
Amount of space an object or substance takes up (3D)

7. Avogadro’s Law V  number of moles (n) 1 mol of gas at STP = 22.4L
Constant temperature
Constant pressure
1 mol of gas at STP = 22.4L