UNIT 7: HEAT AND ENERGY

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Across
  1. 4. Process at constant temperature.
  2. 5. Transition between solid, liquid, and gas.
  3. 9. Substance speeding up a reaction without being consumed.
  4. 13. States enthalpy change is independent of reaction pathway.
  5. 16. Temperature at which liquid becomes gas.
  6. 19. Heat required to vaporize a liquid.
  7. 20. SI unit of energy.
  8. 21. Minimum energy required for a reaction to occur.
  9. 23. Energy available to do work.
  10. 24. Tendency of a process to occur without external input.
  11. 29. Energy required to break a chemical bond.
  12. 30. Direct change from gas to solid.
  13. 31. Stored energy within chemical bonds.
  14. 34. Heat transfer through direct contact.
  15. 38. When two objects reach the same temperature.
  16. 39. Reaction that releases heat.
  17. 40. Temperature at which solid becomes liquid.
Down
  1. 1. Unit of heat; energy to raise 1 g of water by 1°C.
  2. 2. Process at constant pressure.
  3. 3. Heat content of a system.
  4. 6. Heat required to raise temperature of a unit mass by 1°C.
  5. 7. Total heat required to raise an object's temperature.
  6. 8. Everything outside the system.
  7. 10. Heat required for phase change without temperature change.
  8. 11. Heat transfer via electromagnetic waves.
  9. 12. Heat released during complete burning of a substance.
  10. 14. Energy of motion, often related to temperature.
  11. 15. Heat transfer through fluid movement.
  12. 17. Energy transfer by force over distance.
  13. 18. Heat required to melt a solid.
  14. 22. Temperature at which liquid becomes solid.
  15. 25. Measure of thermal energy.
  16. 26. Direct change from solid to gas.
  17. 27. Process with no heat exchange.
  18. 28. The study of energy transformations.
  19. 32. Measure of system disorder.
  20. 33. Reaction that absorbs heat.
  21. 35. Device used to measure heat changes in reactions.
  22. 36. Process at constant volume.
  23. 37. Part of the universe being studied.