WebAssign is proud to be the exclusive online homework system for Physical Chemistry: A Molecular Approach, 1st edition, by McQuarrie and Simon. As the first modern physical chemistry textbook to cover quantum mechanics before thermodynamics and kinetics, this book provides a contemporary approach to the study of physical chemistry. The WebAssign component of this text features 450 problems, each with links to the relevant portions of a complete eBook (access is optional). The questions cover every concept in this chemistry course.