From the author of the world's most widely used textbooks of physical chemistry, this pocket reference guide is an essential summary of the key concepts that are likely to be met in an undergraduate chemistry course. Designed as a complement to the author's best-selling text Physical Chemistry, the book is also useful for all who encounter physical chemical concepts in research or other areas of professional activity. Individual entries are characterized by their clarity of presentation and extensive use in made of two-colour illustrations throughout the book. Concepts in Physical Chemistry is a guide to mainstream physical chemistry - the physical chemistry that students encounter and that is likely to crop up in every day chemistry.