Physical chemistry

123456789101112
Across
  1. 3. Force per unit area from particle collisions.
  2. 4. A reaction that absorbs heat energy.
  3. 6. The total energy of a system.
  4. 8. A reaction that releases heat energy.
  5. 10. The amount of substance in a given volume.
  6. 12. Biological catalysts that speed up reactions.
Down
  1. 1. A reaction with oxygen that releases energy.
  2. 2. reactions - reactants can turn into products
  3. 5. A measure of average particle energy.
  4. 7. When particles hit each other.
  5. 9. A substance that speeds up a reaction without being used up.
  6. 11. Energy transferred due to a temperature difference.