Physics · Classical
Heat & Thermodynamics
The laws of energy and disorder: temperature and heat, the four laws, heat engines and the Carnot limit, entropy as counting microstates, refrigerators and heat pumps, and why the second law gives time its arrow.
Step 1 of 6 · Overview30 min read ·
Key idea
Prereqs: Energy & work. Next: Electricity & magnetism; Chemistry: energy in reactions. Sources: Feynman *Lectures* Vol. I ch. 44; Atkins, *The Laws of Thermodynamics: A Very Short Introduction*; Sadi Carnot (1824).Next: 1. The laws