Physical Chemistry is one of the orthodox domains of chemistry which is concerned with the application of the hypothesis and theories of physics to the inspection of the chemical properties and reactive behavior material. While also at the combine between physics and chemistry, which is distinct from chemical physics. Physical chemistry, invariance to chemical physics, is mostly but not always a macroscopic or supra-molecular science, as the majority of the principles on which it was founded relate to the mass rather than the molecular/atomic structure alone.
Theoretical Chemistry is the study of structural and dynamic properties of molecules and atomic materials using the appliance of quantum chemistry, equilibrium, and nonequilibrium statistical mechanics and dynamics. Molecular orbital estimation applied to organic and inorganic molecules, solids and surfaces have irradiated intense connections between inorganic and organic chemistry and solid-state physics.