The Nature of the Chemical Process. The Nature of the Chemical Process. Statistical mechanics is the foundation of thermodynamics.
Information theory is regarded as the foundation of statistical mechanics.
However, it might be a surprise that information theory has never been practically used to the thermodynamic or statistical mechanics problems in chemistry so far. According to Gibbs, entropy of mixing decreases discontinuously with the increase in molecular or quantum state similarity. It is assumed that these relations of entropy are applicable to the formation of a solid, liquid, or gaseous mixture and to the mixing of quantum states involved in all kinds of chemical processes. S.-K. Lin, J. Chem. Lin, S.-K. J. Mol.