1. PV = nRT Pressure x Volume = Moles x gas constant x Temp.
Ideal Gas Law
Relates all 4 gas properties (variables):
Amount of gas (# of moles) = n
Volume of gas = V (always expressed in liters)
Temperature of gas = T ( always in Kelvin)
Pressure of gas = P (atm, mmHg, Torr, KPa)
Ideal Gas Law Formula:
PV = nRT Pressure x Volume = Moles x gas constant x Temp.

2. PV = nRT Pressure x Volume = Moles x gas constant x Temp.
Ideal Gas Law
Ideal Gas Law Formula:
PV = nRT Pressure x Volume = Moles x gas constant x Temp.
What is gas law constant (R) ?
Constant for all ideal gases
Equates 4 gas properties
3 different “R” values depends on pressure units
R = L∙kPa mol∙K
R = L∙atm mol∙K
R = L∙mmHg mol∙K

3. Your Guide to the “Groovy” Gas Laws Variables undergoing change
PV=nRT None
Standard Temperature & Pressure  = 273 K & 1 atm Gas Law Constant Values “R” =  
atm R = L∙atm mol∙K _mmHg R = L∙mmHg mol∙K __Kpa_R = L∙kPa mol∙K
Name of Gas Law
Variables undergoing change
Gas Law
Variables held constant
Ideal Gas Law
Pressure
Temperature (K)
Volume (L)
Moles of gas
Boyle’s Law
Volume
Charles’ Law
Dalton’s Law of Partial Pressures
Pressure in a MIXTURE of gases
Combined Gas Law
      Pressure
Gay-Lussac’s Law