Thermodynamics as Usually Taught
Applies only to equilibrated systems which meet a host of physical assumptions.
Zeroth Law is a postulate about energy redistribution and something measured in “Kelvins”.
Ideal gas law is an experimental result, without understanding.
“Heat” is an experimentally observed form of energy which serves the 0th Law postulate.
Equipartition is a “theorem” with ill-defined limits.
Entropy is a mystical quantity with units of Joules/Kelvin defined in the context of the magically perfect Carnot heat engine.