Thermochmistry Vocabulary

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Across
  1. 4. The energy required to change a substance from a solid to a liquid
  2. 6. more of this means more energy is needed to effect a temperature change
  3. 8. an exothermic state change that produces liquid
  4. 10. the heat absorbed or evolved in a chemical reaction
  5. 12. measures average kinetic energy
  6. 19. Energy may be converted from one form to another but total quantity of energy remains constant
  7. 20. A device used to measure the amount of heat absorbed or evolved in a physical or chemical change
  8. 22. The change in enthalpy for a reaction at a given temperature and pressure
  9. 23. requires +40.7kJ per mole of water
  10. 27. The energy that flows into or out of a system because of a difference in temperature
  11. 30. A chemical reaction or a physical change in which reactants have more energy than products
  12. 32. The energy an object has by virtue of its position in a field of force
  13. 33. what holds the particles of a solid or liquid together
Down
  1. 1. accepts or provides energy from or to the system
  2. 2. a chemical equation that includes the amount of heat absorbed or released
  3. 3. point the temperature when the vapor pressure of a liquid equals the pressure above the liquid
  4. 5. shows heat added versus temperature change for a substance
  5. 7. the part of the universe that we are studying, the reactants and products
  6. 9. the study of energy changes in chemical reactions and physical processes
  7. 11. also known as a state change
  8. 13. The SI unit of energy
  9. 14. Energy The energy associated with an object by virtue of its motion
  10. 15. The quantity of heat needed to raise the temperature of the sample of substance by 1°C
  11. 16. The energy required to boil one mole at the boiling point
  12. 17. shows the energy of reactants and products and the enthalpy change for a specific process
  13. 18. A chemical reaction or a physical change in which heat is absorbed (q is positive)
  14. 21. heat used to enact a state change, overcomes IMFs
  15. 24. c, the amount of heat energy required to raise the temp of 1g of a substance by 1K
  16. 25. A non-SI unit of energy equal to 4.184 J
  17. 26. the temperature at which a substance melts or freezes
  18. 28. the potential or capacity to move matter
  19. 29. an exothermic state change that occurs at 0 degrees Celsius
  20. 31. an endothermic state change that produces liquid
  21. 32. energy is a ________ in exothermic reactions