Preface

This book is intended primarily for undergraduate students in science and engineering who seek a clear and conceptual understanding of thermodynamic principles. Thermodynamics stands as one of the foundational subjects in the physical sciences, linking the microscopic behavior of atoms and molecules to macroscopic observations. A clear understanding of thermodynamics is essential for students in physics, chemistry, biology, and engineering, as it provides the logical support for understanding how energy is transformed, transferred, and conserved in all natural and engineered systems.

Despite its importance, many students initially find thermodynamics abstract and challenging. Introductory Thermodynamics has been written to make this subject accessible for students coming from different disciplines and meaningful to learners encountering it for the first time. The book progresses from fundamental concepts, such as gas laws, systems, surroundings, and states, to the laws of thermodynamics and the nature of energy transformations. My approach in writing this book has been to explain concepts as simply as possible at first, then carefully build toward the corresponding mathematical formulations and relationships. Readers will find concise explanations and step-by-step derivations throughout the book, along with end-of-book exercises that include conceptual questions and numerical problems designed to reinforce understanding and stimulate analytical thinking. Answers to all exercises are provided to enable students to assess their progress and verify their solutions.

I hope this book will inspire students to appreciate the elegance and universality of thermodynamic principles and to apply them creatively within their respective disciplines. I am deeply grateful to my students, whose curiosity and feedback have continually shaped my approach to teaching thermodynamics. Their questions and insights have been invaluable in refining the explanations presented here. I am sincerely grateful to everyone who encouraged and supported me in writing this book. Finally, I owe my deepest gratitude to my loving family for their patience, love, and understanding during the long and irregular hours of writing.