J. Bevan Ott is the Joseph K. Nicholes Professor of Chemistry Emeritus, Brigham Young University, USA. He has spent 40 years teachingthermodynamics to undergraduate and graduate students and has written 120 papers in the scientific literature as well as authoring andcontributing to a number of books. Professor Ott has received major awards from Brigham Young University that recognize his accomplishments in teaching and in research, including the Distinguished Faculty Lecture Award, the most prestegious award given by the university.Juliana Boerio-Goates is a Professor of Chemistry at Brigham Young University, USA. She has taught chemical thermodynamics to undergraduate and graduate students for 18 years and has written almost 50 publications in the scientific literature. Professor Boerio-Goatesserves on the Advisory Board of the Journal of Chemical Thermodynamics and has received major awards for teaching and for research fromBrigham Young University which recognize her accomplishments and ability in both areas.