Answer: The law of mass action suggests that the rate of a chemical reaction is directly proportional to the product of the masses of the reactants. In this, each mass is raised to a power, which is equivalent to the coefficient of that reactant in the chemical reaction.
For example- For the chemical reaction-
aA + bB → C + D
Rate of the reaction α [A]ᵃ [b]ᵇ
Rate of the reaction = k [A]ᵃ [b]ᵇ
where, k = rate constant
a+b = order of the reaction.
