1. Unit 3 – Sec. 3. 2 Energy Transformation in Chemical Reactions (p

2. Temperature, Thermal Energy, & Heat
Kinetic Molecular Theory
“Kinetic” = moving
“Molecular” = all matter is made up of atoms & molecules
So, all matter is made up of tiny moving particles.

3. Temperature
is an average measure of how much the particles are moving (= how much kinetic energy they have).
Measured in Celsius, Fahrenheit or Kelvin.

5. Thermal Energy Thermal Energy = Kinetic Energy + Potential Energy
(energy of movement) (energy of position)
So, thermal energy is the total energy of all the particles in any substance.