Table of Contents
Chapter 5: Thermochemistry
5.1 The Nature of Energy
Units of Energy
System and Surroundings
5.2 First Law of Thermodynamics
Internal Energy
Internal Energy
Internal Energy
Heat and Work
Heat and Temperature
Applications of heat emission/absorption
State Functions value does not depend on history of the system, just its present condition
State Functions
State Functions
5.3 Enthalpy
5.4 Enthalpies of Reaction
Values of enthalpy change
Value changes sign with direction
Values depend on physical state
5.5 Calorimetry
Heat Capacity/Specific Heat
Heat Capacity/Specific Heat
Calorimetric Measurements
Solution to zinc/water problem
Enthalpy Change and Changes of Physical State
Changes of Physical State for Br2
Changes of Physical State for H2O
Changes of State
What are the changes of state?
Heating a Pure Substance such as Water
5.6 Hess’s Law
Enthalpy change independent of path
Application of Hess’s Law
Solutions to Hess’s Law Problems
5.7 Enthalpies of Formation
Heats of Formation An application of Hess’s Law
Heats of Formation
Heats of Formation - Answers
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Author: Department of Chemistry and Biochemistry
Email: JBirk@asu.edu
Home Page: http://www.public.asu.edu/~jpbirk
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