Synopsis This book is designed to meet the requirement of the students of B.Tech and B.E. students. The book discusses in detail the following topics: Thermodynamics Phase Rule, Water and its Treatment, Corrosion and its Prevention, Lubrication and Lubricants, Polymer and Polymerization and Analytical Methods. The book is suitably illustrated with diagrams and a number of solved numerical examples from different universities are included to make the text more exhaustive and understandable. Practical part is also appended at the end of the book.