This man's namesake isochore defines the connection between the equilibrium constant and temperature.  
He postulated that the four carbon valences of a carbon atom are directed towards the corners of a regular tetrahedron and showed that optical isomers are mirror images of the same molecule.  This man's namesake isochore defines the connection between the equilibrium constant and temperature.  Along with Ostwald, he founded a scientific journal in 1887, three years after he consolidated his ideas in Etudes de dynamique chimique. Name this chemist who defined the concept of chemical affinity as the maximum work obtainable from a reaction, and who, FTP, received the first Nobel Prize in Chemistry in 1901.
He postulated that the four carbon valences of a carbon atom are directed towards the corners of a regular tetrahedron and showed that optical isomers are mirror images of the same molecule.  
Jacobus Henricus van't Hoff