Question

What are the applications of the equilibrium constant?

Answer 1

1. The equilibrium constant can be defined as the ratio of the molar concentrations of the products to the molar concentrations of the reactants and each concentration term is raised to a power that is the coefficient of that compound in the balanced equation.
2. For a general reaction, $\text{A}+\text{B→C+D}$, the expression of ${\mathrm{K}}_{\mathrm{c}}$ is: ${\mathrm{K}}_{\mathrm{c}}=\frac{\left[\mathrm{C}\right]\left[\mathrm{D}\right]}{\left[\mathrm{A}\right]\left[\mathrm{B}\right]}$
3. Applications of the equilibrium constant are:

1. It is possible to predict the direction of the equilibrium reaction.
2. The extent to which a chemical reaction takes place can be known.
3. Calculation of the equilibrium concentrations of various substances in the reaction.