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Details Title: Chapter 13 Description: States of Matter Total Flash Cards: 20 Created: 02/26/2008 09:06:44	To study from this set of flash cards, or to create your own your own study flash cards, register HERE. If you are already a registered user, CLICK HERE.
Cards Term Kinetic-molecular theory Definition describes the behavior of gases in terms of particles in motion Term Elastic collision Definition a collision in which no kinetic energy is lost Term Temperature Definition measure of average kinetic energy of particles in a sample of matter Term Diffusion Definition the movement of one material through another Term Pressure Definition force per unit area Term Barometer Definition instrument used to measure atmospheric pressure Term Pascal Definition a force of one newton per square meter 1 Pa = 1 N/m2 Term Atmosphere Definition unit of pressure equal to 760mm Hg Term Dispersion force Definition weak forces that result from temporary shifts in the density of electrons in electron clouds Term Dipole-dipole force Definition attractions between oppositely charged regions of polar molecules Term Hydrogen bond Definition dipole-dipole attraction between a hydrogen atom and a small, highly electronegative atom Term Viscosity Definition resistance of a liquid to flow Term Surface tension Definition measure of the inward pull by particles in the interior of a liquid Term Surfactant Definition compounds that lower the surface tension of water Term Crystalline solid Definition solid whose atoms, ions, or molecules are arranged in an orderly, geometric, 3-D structure Term unit cell Definition the smallest arrangement of connected points that can be repeated in three directions to form the lattice Term amorphous solid Definition the particles are not arranged in a regular, repeating pattern Term vapor pressure Definition the pressure exerted by a vapor over a liquid Term phase diagram Definition a graph of pressure versus temperature that shows phases Term triple point Definition represents the point at which three phases of a substance can coexist