Discuss the reaction rate of homogeneous reactions.Supposeasingle-phasereactiona A+ bB?r R + s S. The most usefulmeasure of reaction rate for reactant ‘A' is then-rA= - (1/V) (dNA/dt) = [Amount of Adisappearing] / [(Volume) (Time)], [mol/m3-s]Where(-rA) is the rate of disappearance of A and it is the intensive measure; Minus signmeans disappearance.In addition, rates of reaction of all materials are related by (-rA) / a = (-rB) / b = rR/ r = rS/ s.