Author(s)

José C. Íñiguez

Retired Instructor of Science and Mathematics, Douglas Arizona, USA.

The evidence here provided shows that the thermodynamics of the second law, as currently understood, originated in a correction of the flaws affecting Clausius original work on this matter. The body of knowledge emerging from this correction has been here called post-Clausius’ thermodynamics. The said corrections, carried on with the intended goal of preserving the validity of Clausius’ main result, namely the law of increasing entropy, made use of a number of counterintuitive or logically at fault notions. A joint revision of Clausius’ and post-Clausius’ work on the second law, carried on retaining some of Clausius original notions, and disregarding others introduced by post-Clausius thermodynamics, led this author to results in direct contradiction to the law of increasing entropy. Among the key results coming out of this work we find the one stating that the total-entropy change for spontaneous thermodynamic processes is the result of the summation of the opposite-sign contributions coming from the entropic (energy degrading) and negentropic (energy upgrading) changes subsumed by any such process. These results also show, via the total-entropy change for a non-reversible heat engine, that negentropic thermodynamics subsumes post-Clausius thermodynamics as a special case.

Clausius’ Entropy Law in Contradiction with Its Premises, Post-Clausius’ Thermodynamics Emerges from the Biased Correction of the Flaws in Clausius Entropy Law, Negentropic Thermodynamics and the Transformation of Heat into Work as a Negentropic Process

Íñiguez, J. (2021) On Clausius’, Post-Clausius’, and Negentropic Thermodynamics. Journal of High Energy Physics, Gravitation and Cosmology, 7, 1425-1458. doi: 10.4236/jhepgc.2021.74087.