Chemistry Crossword

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Across
  1. 3. a hypothetical gas that perfectly fits all the assumptions of the kinetic-molecular theory
  2. 4. the reverse of sublimation; the change of a state from a gas directly to a solid
  3. 9. the smallest portion of a crystal lattice that shows the three dimensional pattern of the entire lattice is called a unit cell
  4. 10. three-dimensional arrangement of particles of a crystal
  5. 12. a force that tends to pull adjacent parts of a liquid's surface together, thereby decreasing surface area to the smallest possible size
  6. 13. liquids that evaporate readily
  7. 16. the process by which a gas changes to a liquid
  8. 17. indicates the critical temperature and critical pressure
  9. 18. the temperature at which a solid becomes a liquid
  10. 21. a dynamic condition in which two opposing changes occur at equal rates in a closed system
  11. 23. a process by which gas particles pass through a tiny opening
Down
  1. 1. the physical change of a liquid to a solid by removal of energy as heat
  2. 2. indicates the temperature and pressure conditions at which the solid, liquid, and vapor of the substance can coexist at equilibrium
  3. 5. the conversion of a liquid to a vapor within the liquid as well as its surface
  4. 6. mixing of the particles of two substances caused by their random motion
  5. 7. the process by which a liquid or solid changes to a gas is vaporization
  6. 8. one in which there is no net loss of total kinetic energy
  7. 11. the temperature at which the equilibrium vapor pressure of the liquid equals the atmospheric pressure
  8. 14. the change from a solid directly to a gas
  9. 15. the physical change of a solid to a liquid by the addition of energy as heat
  10. 17. is a substance in which the particles are arranged in an orderly geometric repeating pattern
  11. 19. the process by which particles escape from the surface of a non boiling liquid and enter the gas state
  12. 20. any part of a system that has uniform composition and properties
  13. 22. a gas that does not behave completely according to the assumptions of the kinetic-molecular theory
  14. 24. a substance that can flow and therefore take the shape of its container