Physical Chemistry app provide the information, explanation, and guidance you need to master the subject. The content divided into three parts: Part 1: of the app develops the concepts that are needed for the discussion of equilibria in chemistry. Equilibria include physical change, such as fusion and vaporization, and chemical change, including electrochemistry. The discussion is in terms of thermodynamics, and particularly in terms of enthalpy and entropy. We see that we can obtain a unified view of equilibrium and the direction of spontaneous change in terms of the chemical potentials of substances. The chapters in Part 1 deal with the bulk properties of matter. In Part 2 (Structure): the chapters have been updated with a discussion of contemporary techniques of materials science—including Nano-science and spectroscopy. We have also paid more attention to computational chemistry, and have revised the coverage of this topic in Chapter 10. Part 3: has lost chapters dedicated to kinetics of complex reactions and surface processes, but not the material, which we regard as highly important in a contemporary context. To make the material more readily accessible within the context of courses, descriptions of polymerization, photo chemistry, and enzyme- and surface-catalyzed reactions are now part of Chapters 21 (The rates of chemical reactions) and 22 (Reaction dynamics)—already familiar to readers of the text—and a new chapter, Chapter 23, on Catalysis. ✨Content of the application 1. The properties of gases 2. The First Law 3. The Second Law 4. Physical transformations of pure substances 5. Simple mixtures 6. Chemical equilibrium 7. Quantum theory: introduction and principles 8. Quantum theory: techniques and applications 9. Atomic structure and spectra 10. Molecular structure 11. Molecular symmetry 12. Molecular spectroscopy 1: rotational and vibrational spectra 13. Molecular spectroscopy 2: electronic transitions 14. Molecular spectroscopy 3: magnetic resonance 15. Statistical thermodynamics 1: the concepts 16. Statistical thermodynamics 2: applications 17. Molecular interactions 18. Materials 1: macromolecules and self-assembly 19. Materials 2: solids 20. Molecules in motion 21. The rates of chemical reactions 22. Reaction dynamics 23. Catalysis 📗Key features: ✔Checklist of key equations ✔Discussion questions ✔Exercises ✔Problems