Know more about chemical thermodynamics In this page you will find some extra knowledge on chemical thermodynamics. If you are a true learner you should be here. Find your required concept by scrolling down. The list includes: 1. Transfer of thermal and mechanical energy 2. Interesting example on Joule's Law 3. Exact and inexact differential with respect to state and path function. 4. Molecular interpretation of internal energy, relation with degrees of freedom and equipartition principle. 1. Transfer of thermal and mechanical energy: By molecular interpretation, heating is the transfer of energy that makes use of the disorderly molecular motion in the surroundings. This disorderly motion of molecules is called thermal motion. If the system heats its surroundings, molecules of the system enhance the thermal motion of the molecules in the surroundings. But transfer of mechanical energy (as work) from the system to the surroundings, increases the orderly motion of the m