An Account of Thermodynamic Entropy

Author(s): Alberto Gianinetti

DOI: 10.2174/9781681083933117010023

Outlines of a Verbal Account of the Thermodynamic Entropy for a Pedagogical Approach

Pp: 158-189 (32)

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Abstract

SHS investigation development is considered from the geographical and historical viewpoint. 3 stages are described. Within Stage 1 the work was carried out in the Department of the Institute of Chemical Physics in Chernogolovka where the scientific discovery had been made. At Stage 2 the interest to SHS arose in different cities and towns of the former USSR. Within Stage 3 SHS entered the international scene. Now SHS processes and products are being studied in more than 50 countries.

Abstract

Starting from the observation of spontaneous phenomena, it can be envisioned that, with time, every isolated system tends to settle into the most equilibrated, stable, and inert condition. In the very long term, this is the most probable state of a system. This can be shown to be a universal law, the second law of thermodynamics, defined as “the tendency to the most probable state”. Thereafter, it is intuitive that “a function that measures the equilibration, stability, and inertness of a system” is maximized by the second law. This function is called entropy.

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