Synopsis The book is the outcome of author's long years of professional experiences as Process Engineer as well as his decade-long experience as part-time lecturer taking classes on such subjects as Fluid Mechanics, Heat Transfer & Separation Technologies. The subject matter of each chapter has been discussed to the depth and details to cater to the needs of the students studying Chemical Engineering in B.E., IIT & AMIE (Chemical) courses. The material of each chapter is divided between text and numerical examples with a few problems set in between for the practice of the students. The purpose is to provide a means for teaching, either thru formal course or thru self-study, the fundamental principles and techniques of Unit Operations of Chemical Engineering.