A chemist named Fritz Haber developed a process to produce ammonia directly from hydrogen and nitrogen as shown in the equation. An engineer named Karl Bosch designed the equipment needed for the process, and today the Haber-Bosch process is the primary way that ammonia is produced on an industrial scale. In this unit, students refine the design of a chemical system by specifying a change in conditions that would produce increased amounts of products at equilibrium. Teacher background information, standards, assessments, and references are provided. This book selection also includes the Table of Contents, Foreword, Preface, About the Author, Introduction, Appendix D, and Index.