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Chap 16 Vocab


Kinetic Energy An explanation of how particles in matter behave
Melting Point Temperature at which a solid begins to liquefy.
Heat of fusion The amount of energy required to change a substance from the solid phase to the liquid phase at its melting point.
Boiling point Temperature at which the pressure of the vapor in the liquid is equal to the external pressure acting on the surface of the liquid.
Heat of vaporization Amount of energy required for the liquid at its boiling point to become a gas.
Diffusion The spreading of particles throughout a given volume until they are uniformly distributed.
Plasma Matter consisting of positively and negatively charged particles.
Thermal expansion Increase in the size of a substance when the temperature is increased.
Buoyancy The ability of a fluid. (liquid or gas)
Pressure Force exerted per unit area.
Viscosity The resistance to flow by a fluid.
Pacal The SI Unit of pressure.