Chemistry A Study Of Matter 6.33 Answer Key Online

Chemical equilibrium is a state where the concentrations of the reactants and products in a chemical reaction do not change over time. This does not mean that the reaction has stopped, but rather that the rates of forward and reverse reactions are equal.

The law of mass action states that the equilibrium constant (Kc) for a reaction can be expressed as the ratio of the product of the concentrations of the products to the product of the concentrations of the reactants.

The equilibrium constant expression is a mathematical expression that describes the relationship between the concentrations of the reactants and products at equilibrium.

\[N_2 (g) + 3H_2 (g) ightleftharpoons 2NH_3 (g)\]

To understand chemical equilibrium, let’s consider a simple example: