Terms : Hide Images
| 518776276 | intermolecular forces | forces of attraction between molecules | |
| 518776277 | dipole-dipole attraction | force of attraction between polar molecules; a component of van der Waals forces. | |
| 518776278 | london forces | the intermolecular attractions resulting from the constant motion of electrons and the creation of instantaneous dipoles | |
| 518776279 | hydrogen bond | bond created by the weak attraction of a slightly positive hydrogen atom to a slightly negative portion of another molecule | |
| 518776280 | polarizability | the ease with which the electron cloud of an atom or molecule can be distorted | |
| 518776281 | viscosity | a measure of the resistance of liquids to flow; more viscous materials do not flow easily | |
| 518776282 | Surface tension | the energy required to break through the surface of a liquid or to disrupt a drop of the liquid and spread the material out as a film | |
| 518776283 | Capillary action | the spontaneous movement of a liquid up a tube | |
| 518776284 | phase changes | transformations of one phase to another. | |
| 518776285 | Heat of Fusion | the energy a substance must absorb in order to change from a solid to a liquid | |
| 518776286 | Heat of Vaporization | the energy a substance must absorb in order to change from a liquid to a gas | |
| 518776287 | critical temperature | the temperature above which a substance cannot exist in the liquid state | |
| 518776288 | critical pressure | the lowest pressure at which a substance can exist as a liquid at the critical temperature | |
| 518776289 | vapor pressure | measures the tendency of the liquid to evaporate. | |
| 518776290 | dynamic equilibrium | Reaction happens in both directions, at the same rate | |
| 518776291 | volatile | how readily a liquid evaporates. | |
| 518776292 | normal boiling point | the temperature at which a liquid's vapor pressure equals 1 atm | |
| 518776293 | phase diagram | a map of the phase of a substance as a function of pressure (y-axis) and temperature (x-axis) | |
| 518776294 | normal melting point | melting point at 1 atm | |
| 518776295 | triple point | the point in the phase diagram that represents the unique set of conditions at which three phases are equally stable and in equilibrium | |
| 518776296 | crystalline solid | a solid in which the atoms or molecules that compose them are arranged in a well-ordered three-dimensional arrary | |
| 518776297 | amorphous solid | a solid in which the atoms or molecules that compose them have no long-range order. | |
| 518776298 | crystal lattice | represents the three-dimensional structures of a crystal. | |
| 518776299 | primitive cubic cell | a cubic unit cell in which the lattice points are at the corners only. | |
| 518776300 | body centered cubic cell | a cubic unit cell in which the lattice points occur at the corners and at the center. | |
| 518776301 | face centered cubic | a cubic unit cell that had lattice points at each corner as well as at the center of each face. | |
| 518776302 | cubic close packing | a close packing arrangement in which the atoms of the third layer of a solid are not directly over theose in the first layer. | |
| 518776303 | hexagonal close packing | a close packing arrangement in ehich the atoms of the third layer of a solid lie directly over those in the first layer. | |
| 518776304 | coordination number | the number of adjacent atoms to which an atom is directly bonded. | |
| 518776305 | molecular solids | solids that are composed of molecules. | |
| 518776306 | covalent network solids | solids in which the units that make up the three-dimensional network are joined by covelant bonds | |
| 518776307 | ionic solids | solids that are composed of ions | |
| 518776308 | metallic solids | solids that are composed of metal atoms |
