Cliffs AP Chemistry, 3rd Edition

The Gas Laws

Key Terms

Words that can be used as topics in essays:

absolute zero

Avogadro’s law

Boyle’s law

Charles’ law

combined gas law

Dalton’s law

diffusion

effusion

Gay-Lussac’s law

Graham’s law of effusion

ideal gas

ideal gas law

kinetic theory

molar volume

mole fraction

partial pressure

real gas

root-mean-square velocity

STP

translational energy

van der Waals equation

Key Concepts

Equations and relationships that you need to know:

• 1 atm = 760 mm Hg = 760 torr = 101.3 kPa = 14.7 lb/in^2
  K = °C + 273.15


• Avogadro’s law: V 1 n 2 = V 2 n 1
  Boyle’s law: P 1 V 1 = P 2 V 2
  Charles’ law: V 1 T 2 = V 2 T 1
  combined gas law: PVT^111 =PVT^222
  Dalton’s law of partial pressures: Ptotal= P 1 + P 2 + P 3 +...
  derivation: Pi=nntotali #Ptotal

V

g

RT

density P MW

:

==#

Gay-Lussac’s law: P 1 T 2 = P 2 T 1