This book is one in the series of Interdisciplinary Approaches to Chemistry (IAC) designed to help students discover that chemistry is a lively science and actively used to pursue solutions to the important problems of today. It is expected for students to see how chemistry takes place continuously all around and to readily understand the daily problems facing them and their environment. Contents include: (1) "Introduction of Physical Chemistry"; (2) "The Gaseous State"; (3) "Liquids and Solids: Condensed States"; (4) "Solutions: Solute and Solvent"; (5) "The Colloidal State"; (6) "Changes in Energy"; (7) "Rates of Chemical Reactions"; (7) "Chemical Equilibrium"; and (8) "Electrochemistry". (KHR)