PREFACE Our goal is to present a text that average chemical engineering undergraduates can read and understand and from which they can attack a variety of meaningful problems We have tried to help the student develop a physical insight into the processes of fluid mechanics and develop the understanding that the equations on these pages truly describe what nature does We have tried to choose examples from the students own experiences or that relate to things they can observe in their everyday lives The home is a wonderful place to observe the principles of chemical engineering good teachers help students interpret what they see in the home in terms of chemical engineering principles The true test of the quality of a textbook is whether it becomes the most worn and tattered book on a practicing engineers bookshelf Former students tell us that the first three editions of this book pass that test We hope copies of this edition will become even more worn and tattered For instructor resources visit the texts website at http www mhhe com denevers4e Acknowledgments We thank the many secretaries who worked on various editions of this book the faculty who have reviewed earlier editions and the many students who have used it and given us their criticisms and comments Noel de Nevers Geoffrey D Silcox xxiPREFACE Our goal is to present a text that average chemical engineering undergraduates can read and understand and from which they can attack a variety of meaningful problems We have tried to help the student develop a physical insight into the processes of fluid mechanics and develop the understanding that the ...equations on these pages truly describe what nature does We have tried to choose examples from the students own experiences or that relate to things they can observe in their everyday lives The home is a wonderful place to observe the principles of chemical engineering good teachers help students interpret what they see in the home in terms of chemical engineering principles The true test of the quality of a textbook is whether it becomes the most worn and tattered book on a practicing engineers bookshelf Former students tell us that the first three editions of this book pass that test We hope copies of this edition will become even more worn and tattered For instructor resources visit the texts website at http www mhhe com denevers4e Acknowledgments We thank the many secretaries who worked on various editions of this book the faculty who have reviewed earlier editions and the many students who have used it and given us their criticisms and comments Noel de Nevers Geoffrey D Silcox xxi