A new statement of the second law of thermodynamics

Alan Macdonald
1995 American Journal of Physics  
A new statement of the second law of thermodynamics is given. The law leads almost effortlessly, for very general closed systems, to a definition of absolute entropy S, a demonstration that ∆S ≥ 0 in adiabatic processes, a definition of temperature, and a demonstration that dS ≥ δQ/T along quasistatic processes. Entropy is given a clear physical meaning.
doi:10.1119/1.18018 fatcat:c7lysi2gybfqzg3am43oifzaby