Statistical Physics, Third Edition, Part 1: Course of Theoretical Physics, Volume 5 is a 15-chapter text that covers some theoretical physics-related topics, including thermodynamics, ideal gases, phase equilibrium, and chemical reactions. This volume deals with the properties of gases, the thermodynamics of a degenerate plasma, liquid crystals, the fluctuation theory of phase transitions, and critical phenomena. Other chapters discuss the topics of solids, symmetry of crystals, and the theory of rreducible representations of space groups as applied to physics of the crystal state. This volume also explores the fluctuation-dissipation theorem; the Fermi and Bose distributions; non-ideal gases; phase equilibrium; and solutions. This book is of great value to theoretical physicists, researchers, and students.