This textbook introduces chemistry and chemical engineering students to molecular descriptions of thermodynamics, chemical systems, and biomolecules.

• Equips students with the ability to apply the method to their own systems, as today's research is microscopic and molecular and articles are written in that language
• Provides ample illustrations and tables to describe rather difficult concepts
• Makes use of plots (charts) to help students understand the mathematics necessary for the contents
• Includes practice problems and answers