Thermodynamics, in a literal term means the production of heat through mechanical actions. a concept that was first introduced by Lord Kelvin in an attempt to show the dynamic nature of heat as well as how heat is generated through mechanical motion. It is through these concepts that we are now able to accurately predict such things as whether a reaction is feasible. Thermodynamics has since become a vast area of science both chemical as well as physical and it is this area that has helped advance chemistry towards being an exact science.
heat, work, system and surroundings.
Internal energy, Kirchhoff's law and Hess's law.