Textbook is designed primarily for students of the bachelor's degree program in Mechanical Engineering Department of Mechanical Engineering Study Institute of Technology and Economics, Czech Budejovice (VŠTE). The aim of the first chapters (chapters 1 to 8) is a summary and overview of the basic chemical concepts, principles and procedures, exceeding beyond high school chemistry curriculum. We believe that this passage can be especially helpful for those students who study during high school had the opportunity to attend only limited teaching chemistry. Chapters 9 to 13 are dedicated to issues falling within the area of physical chemistry. In these chapters respectively deal with energy and kinetics of chemical reactions, basic characterization of phase states, the issue of phase equilibria and electrochemistry.