Use lower case for all laws and formulas, unless named after a discoverer. Separate co-discoverers with an en dash. However, each law should be researched to determine its history:

Carathéodory’s formulation     Clausius–Kelvin–Planck way    Knudsen gas     Joule–Thomson expansion     Massieu functions
adiabatic gas law     zeroth, first, second and third laws of thermodynamics     local thermodynamic equilibrium

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