How to determine the equilibrium constant for a chemical reaction?

One measure of the preference of one reaction over another is called the equilibrium constant. It is defined as the ratio of the product of the forward reaction rate constant and the product of the reaction's reverse reaction rate constant to the product of the respective equilibrium reaction rate constants. The value of the equilibrium constant is always greater than 1.

How to calculate the equilibrium constant for a reversible reaction?

A reaction is called reversible when the forward reaction and the backward reaction occur at the same rate. Reversible reaction equilibrium can be represented by the expression:

How to calculate the equilibrium constant for a chemical reaction?

This is the most common question asked about the chemical equilibrium constant. The equation for the equilibrium constant of an ideal reaction is

How to calculate the equilibrium constant for a first order chemical reaction?

If you are asked to calculate the change in Gibbs free energy for a reaction, you can use the equation ΔG = RTlnK. The equilibrium constant is the ratio of the forward reaction rate constant to the backward reaction rate constant. If you have a first order reaction with a forward reaction rate constant and a backward reaction rate constant, you can use the equation for ΔG to calculate the equilibrium constant.

How to calculate the equilibrium constant for a complex reaction?

A reaction’s equilibrium constant is a measure of the change in the forward reaction (the reaction occurring in the direction of increasing product concentration) and the backward reaction (the reaction occurring in the direction of decreasing reactant concentration). Before you can determine the equilibrium constant for a complex reaction, you must first determine the activities of each species, or the amount of each species that is present in the reaction in terms of the “activity” of the reaction, rather than the amount of the species