For the reaction: 2 -> + , the expression -1/2 d[]/dt represents — Chemical Kinetics Chemistry Question

💡 Solution & Explanation

The instantaneous rate of a chemical reaction is obtained by dividing the rate of change of concentration of any reactant or product by its stoichiometric coefficient, with a negative sign for reactants. Thus, rate = -1/2 d[$HI$]/dt represents the instantaneous rate of reaction.