AP CHEMISTRY_UNIT 6_THERMODYNAMICS

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Across
  1. 3. The heat required to convert a solid directly into a gas.
  2. 5. The movement of thermal energy from one place to another.
  3. 6. The phase change from liquid to gas.
  4. 8. The temperature at which a solid becomes a liquid.
  5. 11. The temperature at which a liquid becomes a gas.
  6. 13. A graph showing the energy changes during a reaction.
  7. 15. A graph showing the potential energy changes during a reaction.
  8. 16. The amount of heat required to raise the temperature of one gram of a substance by one degree Celsius.
  9. 18. A reaction that releases heat.
  10. 20. Heat transfer through electromagnetic waves.
  11. 24. The physical state of a substance under standard conditions.
  12. 26. Everything outside the system in a thermodynamic process.
  13. 27. The minimum energy required to start a chemical reaction.
  14. 31. The heat change when one mole of a substance is formed from its elements.
  15. 34. The total energy contained within a system.
  16. 36. The heat released during the combustion of a substance.
  17. 37. A measure of a material's ability to conduct heat.
  18. 41. The total enthalpy change of a reaction is the same, no matter how many steps it takes.
  19. 42. The heat change when one mole of a compound is formed from its elements.
  20. 43. The phase change from solid to liquid.
  21. 44. An instrument used to measure heat changes.
  22. 45. A transition between solid, liquid, and gas.
  23. 46. Heat transfer through direct contact.
  24. 47. The phase change from solid to gas without passing through the liquid phase.
  25. 48. Heat transfer by the movement of fluids.
  26. 49. The energy required to break a chemical bond.
  27. 50. A graph showing the enthalpy changes during a reaction.
Down
  1. 1. A chemical equation that includes the enthalpy change.
  2. 2. The amount of heat required to raise the temperature of a substance.
  3. 4. A process that releases heat.
  4. 7. The heat change when one mole of a substance is burned in excess oxygen.
  5. 9. The SI unit of energy.
  6. 10. The heat change at constant pressure.
  7. 12. The state in which two objects in contact have no net heat flow.
  8. 14. The heat change when a solute dissolves in a solvent.
  9. 17. A property that depends only on the state of the system, not the path taken.
  10. 19. A diagram showing the progress of a reaction.
  11. 21. The heat required to convert a solid into a liquid.
  12. 22. A unit of heat energy, equivalent to 4.184 joules.
  13. 23. The heat required to convert a liquid into a gas.
  14. 25. A process that absorbs heat.
  15. 28. The total heat content of a system.
  16. 29. The part of the universe being studied in a thermodynamic process.
  17. 30. The phase change from gas to solid without passing through the liquid phase.
  18. 32. Energy cannot be created or destroyed, only transformed.
  19. 33. A diagram representing the application of Hess's law to calculate enthalpy changes.
  20. 35. A reaction that absorbs heat.
  21. 38. The measurement of heat changes.
  22. 39. The phase change from gas to liquid.
  23. 40. The heat change during a chemical reaction.