Question

In the expression of rate of reaction in terms ofreactants, what
is thesignificance of negative sign?​

Answer 1

Answer:

Rate Expressions describe reactions in terms of the change in reactant or product concentrations over the change in time. The rate of a reaction can be expressed by any one of the reactants or products in the reaction

The negative sign indicates the consumption of reactant species in a reaction wrt time. So the rate of reaction w.r.t reactants is indicated by a negative sign