Brownsugarotcgo Brownsugarotcgo Physics Answered Which of the following is not a valid equation for describing the behavior of gases? OA. (V₁/T₁) = (V₂/T2) B. PV = nRT OC. P₁V₁ = P₂V₂ OD. (P₁/V₁) = (P2/V₂)