Across
- 3. The quantity of energy required to evaporate 1 mole, or a unit mass, of a liquid, at constant pressure and temperature.
- 7. Caused by the metamorphosis of a material or mixture from one phase to another, such as gas to liquid, solid to gas.
- 8. The minimum pressure necessary to bring about liquefaction at the critical temperature.
- 11. Attractive forces that exist among molecules.
- 13. The energy (in kilojoules) required to melt one mole of a solid.
- 14. The intermolecular attraction between like molecules.
- 15. The temperature above which a gas will not liquefy.
- 19. Type of glass that has low thermal expansion, and is transparent to visible and infrared, but not to UV, radiation. Used mainly in laboratory and household cooking glassware.
- 20. The dipole-dipole, dipole-induced dipole, and dispersion forces.
- 21. 518 kPa.
- 23. The attraction between unlike molecules.
- 27. Is the bonding caused by the attractive force caused by the hydrogen attached to an electronegative atom of one molecule and an electronegative atom of a different molecule.
- 28. Forces that hold atoms together in a molecule.
- 30. Type of crystal held together through metallic bond.
- 33. Type of glass that has low thermal expansion, and is transparent to wide range of wavelengths. Used in optical research.
- 34. The point at which the vapor, liquid, and solid states of a substance are in equilibrium.
- 35. Type of crystal that is held together by electrostatic attraction.
Down
- 1. 0.01 degrees Celsius (273.16 Kelvin, 32.01 degrees Fahrenheit) and 4.58 mm (611.2 Pa) of mercury and is used to calibrate thermometers.
- 2. It is the cooling of a liquid below its freezing point without forming the solid.
- 4. Is a graph showing the temperature of a substance plotted against the amount of energy it has absorbed.
- 5. The basic repeating unit of the arrangement of atoms, molecules, or ions in a crystalline solid.
- 6. The pressure at a point in a fluid at rest due to the fluid above it. Also known as gravitational pressure.
- 9. Type of crystal that has a covalent bond.
- 10. The energy (in kilo joules) required to vaporize on mole of a liquid.
- 12. The partial pressure of water vapor in the atmosphere.
- 16. The temperature at which the solid and liquid phases of a substance coexist at equilibrium.
- 17. The ease with which the electron density in an atom can be distorted.
- 18. Any object or system that is oppositely charged at two points, or poles, such as a magnet or a polar molecule.
- 22. The attractive forces that arise as a result of temporary dipoles induced in the atoms or molecules; also called London forces.
- 24. Type of glass that is easily attacked by chemicals and sensitive to thermal shocks. It transmits visible light, but absorbs UV radiation. Used mainly in windows and bottles.
- 25. Type of crystal held together by dispersion forces, dipole-dipole forces, and hydrogen bonds.
- 26. The condition in which the rate of forward process is exactly balanced by the rate of a reverse process.
- 29. A measure of a fluid’s resistance to flow.
- 31. The amount of energy required to stretch or increase the surface of a liquid by a unit area.
- 32. The temperature at which the vapor pressure of liquid is equal to the external atmospheric pressure.