Definition

Keq is the equilibrium constant of a reaction. It is the ratio of the concentration of products to the concentration of reactants.

Explanation

For each chemical reaction, a constant (Keq) expresses the relation between the concentrations of the reactants and products at equilibrium at a certain temperature and pressure.

Examples –

Structural reaction scheme for Keq, diagram 1 of 2
Figure 1. Keq
Structural reaction scheme for Keq, diagram 2 of 2
Figure 2. Keq