Uploaded May 2019 | Updated September 2026, 2 weeks ago
We apply the first law of thermodynamics to understand the Stirling cycle heat engine.
Note on the definition of a "closed system." I am using the term "closed system" in the sense of the following definition from Thermal Physics by Charles Kittel: "A closed system is defined as a system with constant energy, constant number of particles, and constant volume." Another term for such a system is "isolated system," in which case "closed system" may refer to a system that has a constant number of particles but can exchange energy with its surroundings.
We apply the first law of thermodynamics to understand the Stirling cycle heat engine.
Note on the definition of a "closed system." I am using the term "closed system" in the sense of the following definition from Thermal Physics by Charles Kittel: "A closed system is defined as a system with constant energy, constant number of particles, and constant volume." Another term for such a system is "isolated system," in which case "closed system" may refer to a system that has a constant number of particles but can exchange energy with its surroundings.







![Quantum Mechanics 7b - Angular Momentum II
We conclude our discussion of angular momentum in quantum mechanics. [ratings and comments (including constructive criticism or suggestions for improvement) always welcome]
Part a: http://youtu.be/NwbvTa2xV9k
Appendix video: http://youtu.be/Roq9IA7Z-PY
Playlist: http://www.youtube.com/playlist?list=PL193BC0532FE7B02C Quantum Mechanics 7b - Angular Momentum II](https://i.ytimg.com/vi/7OmvPygd3iY/mqdefault.jpg)


