Enter the molar concentration and coefficients of the 4 substances into the calculator. The calculator will evaluate and display the equilibrium constant of those substances.

## Equilibrium Constant Formula

The following formula can be used to calculate the equilibrium constant of a solution.

K = ([C]^{c} * [D]^{d})/([B]^{b} * [A]^{a})

- Where K is the equilibrium constant
- [A,B,C,D] are the molar concentrations of those substances
- a,b,c,d are the coefficients of each substance

## Equilibrium Constant Definition

An equilibrium constant is a constant used to describe when a solution will be at equilibrium.

## Equilibrium Constant Example

How to calculate equilibrium constant

**First, determine the molar concentrations of each substance**Calculate or measure the concentrations of each individual substance.

**Next, determine the coefficients**Determine the corresponding coefficients of each substance.

**Calculate the equilibrium constant**Using the information from steps 1 and 2, calculate the equilibrium constant.

## FAQ

**What is an equilibrium constant?**

An equilibrium constant is a constant used to describe when a solution will be at equilibrium.