Physical chemistry, as a subfield of chemistry, is a discipline with its own set of problems and techniques. But it is also a source of basic theories, and a provider of experimental methods for chemical sciences. Since the eighteenth century, with some precursors in the seventeenth century, pioneer work by French scientists, particularly in the field of thermodynamics and thermochemistry, strongly contributed to the establishment of this discipline. As Guéron and Magat pointed out in 1971,1 the names of these scientists appear in the first chapters of all physical chemistry textbooks. Among them: Pascal, Mariotte, Lavoisier, Clapeyron, Gay‐Lussac, Bertholet, Carnot, Charles, Proust, Berthelot, Marcelin. Today, the beneficiaries of this precious heritage indeed perform their research in a much broader spectrum of scientific subjects, interacting with other chemistry subfields (organic, inorganic, analytical, biological, polymer) as well as with neighboring sciences such as life and health sciences, materials science, nanoscience, engineering, energy and environmental sciences, or even astronomy.