Gibbs free energy is also important for a number of other reasons.

The free energy per site in the limit is given as follows.

But when the world outside gives us so much free energy, why not accept the gift?

This is the Gibbs free energy for a closed system.

We have already seen that Gibbs free energy is useful in two ways.

Then, each configuration's change in free energy can be calculated as the potential of mean force.

The "certain other data" is called the "free energy of reaction".

A step with a large negative change in free energy is assumed to be regulated.

You need to also have Gibbs free energies for the products.

Writing out the first few terms in the free energy: