The Chemical Engineering Behind How Pop Goes Flat: A Hands-On Experiment for Freshmen Students


  • Keith L. Hohn Kansas State University


A hands-on project was developed to educate new chemical engineering students about the types of problems chemical engineers solve and to improve student enthusiasm for studying chemical engineering. In this project, students studied the phenomenon of carbonated beverages going flat. The project was implemented in 2003 and 2004 at Kansas State University. Student surveys indicated that students valued the hands-on nature of the activity and enjoyed working in groups on a significant “real world” engineering project.

Author Biography

Keith L. Hohn, Kansas State University

Keith Hohn is an associate professor of chemical engineering at Kansas State University. He received his bachelor's degree from the University of Kansas and his Ph.D. from the University of Minnesota, both in chemical engineering. His research interests are heterogeneous catalysis and its application in hydrocarbon conversion and hydrogen generation.