Thermodynamics is simple but a little difficult to comprehend the subject because most of the theories were evolved over a period utilizing experiments and measurements. This book will help students understand and appreciate the basics of thermodynamics starting from the fundamentals. The subject matter has been organized into 14 chapters in a logical sequence which covers both basic and applied thermodynamics. The theory is presented lucidly with practical examples, wherever necessary. Each chapter consists of solved examples, review questions, exercise problems, and MCQs, thereby helping students to apply the concepts learned in the chapter.