Unit 7: Reaction Energy

3. The SI unit of heat as well as all other forms of energy.
5. The amount of heat required to raise the temperature of one gram of a substance by 1°C or 1 K.
6. absorbs heat energy.
9. The energy transferred between samples of matter because of a difference in their temperatures.
10. The study of the transfers of energy as heat that accompany chemical reactions and physical changes.
13. The minimum energy colliding particles must have in order to react.
14. releases heat energy.

1. Atoms, ions, and molecules can react to form products when they collide, provided that the particles have enough kinetic energy.
2. The amount of heat required to raise the temperature of a specified amount of a substance by 1°C or 1 K.
4. A measure of the average kinetic energy of the particles in a sample of matter.
7. This law states that energy cannot be created or destroyed, it can only be changed or transferred.
8. The change in concentration of reactants or products in a given amount of time.
11. Substance that speeds up the rate of a chemical reaction.
12. Energy due to motion.