Question

define rate of a reaction

Answer 1

The reaction rate or rate of reaction is the speed at which reactants are converted into productsis called rate of reaction For most reactions, the rate decreases as the reaction proceeds. Chemical kinetics is the part of physical chemistry that studies reaction rates.

Answer 2

Reaction rate the speed at which a chemical reaction proceeds. It is often expressed in terms of either the concentration of product that is formed in a unit of time or the concentration of a rectant that is consumed in a unit of time.

I hope it is useful