Thermochemistry

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Across
  1. 3. difference between potential energy of products and reactants
  2. 5. the potential change of a system during processes such as a chemical reaction or a physical change
  3. 6. the study of energy and energy transfer
  4. 7. absorption of energy
  5. 9. everything else in the universe
Down
  1. 1. release of energy
  2. 2. reaction between a hydrocarbon and oxygen to give off CO2 and H2O
  3. 4. the study of energy involved in chemical reactions
  4. 8. energy of motion
  5. 10. a part of the universe being studied and observed