The Law of Mass Action states:
The rate of a chemical reaction is directly proportional to the product of the molar concentrations of the reactants, each raised to the power of its respective stoichiometric coefficient in the balanced chemical equation.
Mathematical Representation:
For a general reaction: aA+bB→PRODUCT
The rate of the reaction is:
Rate∝[A]a[B]b
Where:
[A] and [B] are the molar concentrations of the reactants.
and are the stoichiometric coefficients of the reactants in the balanced equation.
In equilibrium reactions, this principle is also used to derive the equilibrium constant .