1. Chapter 6: Thermochemistry
James Prescott Joule

2. Heat Transfer: From Hot to Cold
Universe
Heat
Solar System
Heat
Earth
Heat
Surroundings
SYSTEM
Reaction
Exothermic: Releases heat
MCTC
Heat
Minneapolis
Heat
Table
Heat

3. Changes in Energy: Keeping Track
Change in Energy
E = Efinal - Einitial = Ef - Ei E
Efinal < Einitial
Efinal > Einitial
System gains heat energy. Endothermic
System loses heat energy. Exothermic
E = Efinal - Einitial > 0
E = Efinal - Einitial < 0
E is positive.
E is negative