| Acknowledgments | ix |
| l. Energy and Entropy in Everyday Terms | 1 |
| 2. Work and Force | 10 |
| 3. Heat from Work: The First Law | 29 |
| 4. The Microscopic View of Energy | 67 |
| 5. Engines and Refrigerators: The Second Law | 105 |
| 6. Implications of the Second Law | 141 |
| 7. The Molecular View of Entropy | 150 |
| 8. Why Does Entropy Always Increase? | 193 |
| 9. Entropy and/or Information | 212 |
| 10. Radiant Energy, Black Bodies, and the Greenhouse Effect | 229 |
| 11. Chemistry: Diamonds, Blood, Iron | 256 |
| 12. Biology: Muscles, Kidneys, Evolution | 276 |
| 13. Geology: How Old Is the Earth? | 303 |
| 14. Quantum Mechanics and the Third Law | 318 |
| 15. Relativity and the Fate of the Universe | 349 |
| Afterword | 389 |
| Appendix: Math Tools | 393 |
| A Note on Energy Units | 408 |
| Glossary of Symbols | 409 |
| References | 413 |
| Credits | 421 |
| Index | 423 |