Page 18 - Physical chemistry eng

PREFACE xvii

New to This Edition

The third edition of Physical Chemistry includes changes at several levels. The most far-
®
reaching change is the introduction of MasteringChemistry for Physical Chemistry. Over
460 tutorials will augment the example problems in the book and enhance active learning
and problem solving. Selected end of chapter problems are now assignable within
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MasteringChemistry and numerical, equation and symbolic answer types are automati-
cally graded.
The art program has been updated and expanded, and several levels of accuracy
checking have been incorporated to increase accuracy throughout the text. Many new
conceptual problems have been added to the book and most of the numerical problems
have been revised. Significant content updates include moving part of the kinetic gas
theory to Chapter 1 to allow a molecular level discussion of P and T. The heat capac-
ity discussion previously in sections 2.5 and 3.2 have been consolidated in Chapter 2,
and a new section on doing work and changing the system energy from a molecular
level perspective has been added. The discussion of differential scanning calorimetry
in Chapter 4 has been expanded and a molecular level discussion of entropy has been
added to Chapter 5. The discussion of batteries and fuel cells in Chapter 11 has been
revised and updated. Problems have been added to the end of Chapter 14 and a new
section entitled on superposition wave functions has been added. A new section on
traveling waves and potential energy barriers has been added to Chapter 16. The dis-
cussion of the classical harmonic oscillator and rigid rotor has been better integrated
by placing these sections before the corresponding quantum models in Chapter 18.
Chapter 23 has been revised to better introduce molecular orbital theory. A new sec-
tion on computational results and a set of new problems working with molecular
orbitals has been added to Chapter 24. The number and breadth of the numerical prob-
lems has been increased substantially in Chapter 25. The content on transition state
theory in Chapter 32 has been updated. A discussion of oscillating reactions has been
added to Chapter 36 and the material on electron transfer has been expanded.

Acknowledgments

Many individuals have helped us to bring the text into its current form. Students have
provided us with feedback directly and through the questions they have asked, which has
helped us to understand how they learn. Many of our colleagues including Peter
Armentrout, Doug Doren, Gary Drobny, Graeme Henkelman, Lewis Johnson, Tom
Pratum, Bill Reinhardt, Peter Rosky, George Schatz, Michael Schick, Gabrielle Varani,
and especially Wes Borden and Bruce Robinson have been invaluable in advising us. Paul
Siders generously provided problems for Chapter 24. We are also fortunate to have access
to some end-of-chapter problems that were originally presented in Physical Chemistry,
3rd edition, by Joseph H. Noggle and in Physical Chemistry, 3rd edition, by Gilbert
W. Castellan. The reviewers, who are listed separately, have made many suggestions for
improvement, for which we are very grateful. All those involved in the production process
have helped to make this book a reality through their efforts. Special thanks are due to Jim
Smith, who helped initiate this project, to our editors Jeanne Zalesky and Jessica
Neumann, and to the staff at Pearson, who have guided the production process.