BOYLE'S LAW
P ∝ 1/V
P₁V₁ = P₂V₂

 

CHARLES'S LAW
V ∝ T
V₁T₂ = V₂T₁

COMBINED GAS LAW
P₁V₁T₂ = P₂V₂T₁

 

GAY-LUSSAC'S LAW
P₁T₂ = P₂T₁

 

AVOGADRO'S LAW
V ∝ n   

IDEAL GAS LAW
PV = nRT