The discipline that deals with the study of atomic, subatomic and macroscopic phenomena in chemical systems related to the concepts, practices and principles of physics is known as physical chemistry. A few of the major branches that fall under physical chemistry include chemical kinetics, thermochemistry, materials science, physical organic chemistry and biophysical chemistry. It is concerned with resolving the effects of intermolecular forces that act on the physical properties of materials. It also focuses on the effects of reaction kinetics on the rate of reaction, surface science and electrochemistry of the cell membranes. This book traces the progress of this field and highlights some of its key concepts and applications. Different approaches, evaluations, methodologies and advanced studies on physical chemistry have been included in this book. It is appropriate for students seeking detailed information in this area as well as for experts.