Chemistry Crossword

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