Arieh Ben-Naim is a professor emeritus at the Hebrew University of Jerusalem’s Department of Physical Chemistry. Born in Jerusalem, Israel, in July 1934. Most of his research work was focused on the theory of water, aqueous solutions, and the role of water in biochemical processes. Recently the author dedicated his time to explaining and clarifying to the general public the most mysterious concept in physics: Entropy. He is the author of many books and articles on Entropy and the Second Law, the most popular of which is “ Entropy Demystified,” first published in 2006.

• Introduction, definitions and motivations for studying solvent-induced interactions.- A Brief Introduction to Statistical Thermodynamics.- Solvent-induced interactions and forces, definitions and connections with thermodynamics.- Hydrophobic interactions and forces.- Hydrophilic Interactions and Forces.- Implementation of the HϕI interactions and forces in some biochemical processes.- Appendix A. The BN3D model of water and the corresponding pair potential.- Appendix B.  Solvation thermodynamics of water in liquid water.