Chemical potential

Chemical reactions are associated with a change of composition and a change in composition is associated with an energy change. Each type of energy can be expressed as a product intensity (μi – chemical potential) and capacity (&Delta;ni – increase in moles of the given component i) factor.

At constant pressure and temperature, the chemical potential can be defined as follows:


 * $$ \mu_i = \frac {\delta G}{\delta n_i} $$
 * The partial change in Gibbs free energy, which accounts for a small change in the number of moles of a given substance.

Chemical potential is a measure of the affinity of given substance, the chemical potential and the amounf of substances in the system determine what reactions will take place in the system and how quickly.

Related articles

 * Potential
 * Gibbs energy
 * Free energy
 * Entalpy