Special cases of the Gas Law

Boyle’s law           pV = constant

                               p₁V₁ = p₂V₂         (number of moles and temperature constant)

 Gay-Lussac’s law

                                p/T = constant   ( number of moles and the volume constant)

p₁/T₁ = p₂/T₂             Remark  : T in K

Charles’s law         V/T = constant    ( number of moles and pressure constant)     

                                            V₁/T₁=V₂/T₂              Remark : T in K