Chemistry 12- Module 2

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Across
  1. 1. the part of the universe being studied and observed
  2. 2. when energy is absorbed
  3. 5. all existing matter and space considered as a whole
  4. 6. the study of energy involved in reactions
  5. 8. a statement published by a Swiss born, Russian chemist in 1840
  6. 9. heat content of a system
Down
  1. 1. everything in the universe outside the system
  2. 3. measured in joules
  3. 4. available power
  4. 7. when energy is released