Chemistry McMurry and Fay, 5th Edition - Blinn College：化学McMurry和Fay，第五版-宾氏学院.pptVIP

Copyright ? 2008 Pearson Prentice Hall, Inc. Chapter 8: Thermochemistry: Chemical Energy Copyright ? 2008 Pearson Prentice Hall, Inc. Energy Energy Changes and Energy Conservation Energy Changes and Energy Conservation Energy Changes and Energy Conservation Internal Energy and State Functions Internal Energy and State Functions Internal Energy and State Functions Internal Energy and State Functions Internal Energy and State Functions Expansion Work Expansion Work Expansion Work Energy and Enthalpy Energy and Enthalpy The Thermodynamic Standard State Enthalpies of Physical and Chemical Change Enthalpies of Physical and Chemical Change Enthalpies of Physical and Chemical Change Calorimetry and Heat Capacity Calorimetry and Heat Capacity Calorimetry and Heat Capacity Calorimetry and Heat Capacity Calorimetry and Heat Capacity Calorimetry and Heat Capacity Hess’s Law Hess’s Law Standard Heats of Formation Standard Heats of Formation Standard Heats of Formation Standard Heats of Formation Standard Heats of Formation Standard Heats of Formation Standard Heats of Formation Bond Dissociation Energies Bond Dissociation Energies Fossil Fuels, Fuel Efficiency, and Heats of Combustion Fossil Fuels, Fuel Efficiency, and Heats of Combustion An Introduction to Entropy An Introduction to Free Energy An Introduction to Free Energy Note that the values for water are considerably higher than most other substances. Interesting discussion points could be how large bodies of water affect weather, the human body is approximately 60% water and the role it plays in homeostasis, etc. Hydrazine, N2H4, is a reactive intermediate (more on that in Ch 12: Chemical Kinetics). Chemical reactions are far more complicated than we discuss in Ch 3 (stoichiometry). The overall reaction and step 2 can be measured, but step 1 cannot be measured easily. Students need to remember solid, liquid, gases, and diatomics from chapter 1. Note the lack of anything that is 0. Elements (standard state) are defined to