Thermodynamics is a branch of physics that deals with the relationship between properties such as energy, heat, work, pressure, density, temperature, etc. on a system.
There are three thermodynamic systems, open, closed and isolated:
- Open system freely exchanges energy and matter with its surroundings.
- Closed system exchanges only energy with its surroundings, not matter.
- Isolated system keeps the energy and matter within the system and everything else out. No transfer in or out.