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Chapter 16-1

Vocab

QuestionAnswer
Kinetic theory An explanation of how particles in matter behave.
Melting point The 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 as its melting point.
Boiling point The 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 vaporation The 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 An increase in the size of a substance when the temperature is increased.
Buoyancy The ability of a fluid- a liquid or a gas- to exert an upward force on an object immersed in it.
Pressure Force exerted per unit area, or P=F/A.
Viscosity The resistance to flow by a fluid.
Pascal The SI unit of pressure.
Created by: caseygoodman
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