How to understand the change in internal energy microscopically, (in terms of molecular energy levels/ states,)
- when the heat added into the system and 2. when work is done on the system?
when the heat added into the system
when work is done on the system?
Ultimately, I want to get clear on how the work (pressure) and heat are changing the energy levels and states?
Also, are the work and heat are same microscopically?
