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Across
  1. 1. Heating curve Graph showing temperature during heating
  2. 2. Dynamic equilibrium Forward and reverse processes occur at same rate
  3. 4. Joule SI unit of energy
  4. 6. Calorimeter Device used to measure heat changes
  5. 8. Critical point Temperature and pressure beyond which liquid and gas phases don’t exist
  6. 9. Heat of fusion Energy needed to melt a substance
  7. 10. Dipole–dipole forces Attraction between polar molecules
  8. 11. Thermal energy Total kinetic energy of particles
  9. 12. Hydrogen bond Strong attraction between hydrogen and electronegative atom
  10. 13. Calorie Unit of energy
  11. 14. Cooling curve Graph showing temperature during cooling
  12. 15. Intermolecular forces Forces between molecules
Down
  1. 1. London dispersion forces Weak forces between nonpolar molecules
  2. 2. Viscosity Resistance of liquid to flow
  3. 3. Latent heat Energy absorbed or released during phase change
  4. 5. Surface tension Resistance of liquid surface to breaking
  5. 6. Capillary action Rise of liquid in a narrow tube
  6. 7. Endothermic process Absorbs heat
  7. 9. Vapor pressure Pressure exerted by vapor in equilibrium with liquid
  8. 10. Specific heat Heat required to raise temperature of 1 gram by 1°C
  9. 11. Heat Transfer of energy due to temperature difference
  10. 12. Exothermic process Releases heat
  11. 13. Heat of vaporization Energy needed to boil a substance
  12. 14. Cohesion Attraction between like molecules
  13. 15. Triple point Temperature and pressure where all states coexist