1. Thermochemistry
Chapter 6

2. Vocabulary Energy Law of conservation of energy Potential energy
Kinetic energy
Heat (q)
Work (w)
Pathway
State function
System
Capacity (C)
Specific heat capacity
Molar heat capacity
Constant-pressure calorimetry
Surroundings
Exothermic
Endothermic
Thermodynamics
First law of thermodynamics
Internal energy (E)
Enthalpy (H)
Calorimeter
Calorimetry
Constant volume
Hess’s law
Standard enthalpy of formation
Standard state

3. 6.1 The Nature of Energy Temperature vs. Heat:
Temperature reflects the random motions of the particles in a particular substance
Heat involves the transfer of energy between two objects due to a temperature difference
Ways to transfer energy:
Work
Heat
When energy is transferred, the total energy transferred is constant; however, the amount of heat and work involved depend upon the pathway.
A change in a state function is independent of the pathway
Energy is a state function
Work and heat are NOT state functions