Entropy and the Time Evolution of Macroscopic Systems

This book is based on the premise that the entropy concept, a fundamental element of probability theory as logic, governs all of thermal physics, both equilibrium and nonequilibrium. The variational algorithm of J. Willard Gibbs, dating from the 19th Century and extended considerably over thefollowing 100 years, is shown to be the governing feature over the entire range of thermal phenomena, such that only the nature of the macroscopic constraints changes. Beginning with a short history of the development of the entropy concept by Rudolph Clausius and his predecessors, along with theformalization of classical thermodynamics by Gibbs, the first part of the book describes the quest to uncover the meaning of thermodynamic entropy, which leads to its relationship with probability and information as first envisioned by Ludwig Boltzmann. Recognition of entropy first of all as afundamental element of probability theory in mid-twentieth Century led to deep insights into both statistical mechanics and thermodynamics, the details of which are presented here in several chapters. The later chapters extend these ideas to nonequilibrium statistical mechanics in an unambiguousmanner, thereby exhibiting the overall unifying role of the entropy.

Walter T. Grandy, Jr.
Professor of Physics, Emeritus
University of Wyoming
Professor of Physics, University of Wyoming, 1963-1998.
Visiting Professor: University of Sao Paulo, Brazil; University of Tubingen, Germany; University of Sydney, Australia.