In this book a sincere effort has been made to include various types of Chemical Thermodynamics. A complete insight into these techniques is possible only when the student understands the basic principles of Chemical Thermodynamics. The present book is self-sufficient. Every concept has been demonstrated by simple diagrams using simple mathematics in an attractive style. The order of the techniques included in this book is conventional and would be liked by students. In many techniques more difficult concepts which may not be of immediate need to the student but would definitely add to his/her knowledge have also been provided.