SEARCH Articles Figures Tables Design Equation for First-Order Irreversible Reaction Design Equation for First-Order Reversible Reaction Equations first-order Equations for a first order reaction First equation First order reaction relaxation equation First reaction First-order reactions First-order reactions reaction Nucleophilic substitution reactions first-order rate equation Order equation Pseudo first order reaction relaxation equations Rate Equations for First- and Second-Order Reactions Rate equations and first-order reactions Reaction equations Solution to the Differential Equation for a First-Order Reaction