This book introduces the basic principles and calculation techniques used in chemical engineering. It discusses problems in material and energy balances related to chemical reactors; explains the concepts of dimensions, units, psychrometry, steam properties, and conservation of mass and energy; and demonstrates how MATLAB and Simulink can be used to solve complicated problems. This Second Edition contains additional homework problems and a new chapter related to single- and multiphase systems. Educational software, downloadable exercises, and a solutions manual are available with qualifying course adoption.