AP Chem Unit 6

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Across
  1. 2. If a substance has high specific heat capacity, it is ____ to change its temperature.
  2. 4. A coffee cup calorimeter is a type of constant ___ calorimetry.
  3. 9. change When only potential energy is changing, the substance is undergoing a ____ ____.
  4. 10. In this type of reaction, energy is released by the system.
  5. 12. heat ____ capacity is the energy required to raise the temperature of one gram of a substance by one degree C.
  6. 15. A substance with low specific heat capacity has less ___ to temperature changes.
  7. 16. The heat content of a system
  8. 17. During heat transfer, total energy is ___.
  9. 19. structure First step to determine bond enthalpy is to draw the ____ for all species.
  10. 21. experiment to determine specific heat of a substance
  11. 22. enthalpy Difference in energy between bonds broken and bonds formed
Down
  1. 1. than If ∆H is ____ zero, the reaction is endothermic because more energy is needed to break bonds.
  2. 3. device used to measure heat content
  3. 5. function A property that is independent of the pathway.
  4. 6. Law Overall enthalpy change in a reaction equals the sum of enthalpy changes for the individual steps.
  5. 7. ____ is associated with expanding or contracting gases
  6. 8. ___ energy is in molecules in motion
  7. 9. ____ energy is contained in bonds
  8. 10. the ability to do work
  9. 11. In a ___ system, heat can flow in and out, but matter cannot.
  10. 13. In an endothermic reaction, the surroundings get ___ in temperature.
  11. 14. There is only ___ and the absence of ____
  12. 16. If heat is added to the system, during a reaction, that reaction is ___.
  13. 18. Stable compounds have a large ____ enthalpy of formation.
  14. 20. energy Average value of gas-phase bond dissociation energy