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Chapter 16


Boiling Point The boiling point of a liquid is 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.
Buoyancy Buoyancy is the ability of a fluid-a liquid or a gas-to exert an upward force on an object immersed in it.
Diffusion The spreading of particles throughout a given volume until they are uniformly distributed.
Heat Of Fusion The amount of energy required to change a substance from the solid phase to the liquid phase at its melting point.
Heat Of Vaporization The amount of energy required for the liquid at its boiling point to become a gas.
Kinetic Theory An explanation of how particles in matter behave.
Melting Point The particles of ice gain enough kinetic energy to slip out of their ordered arrangement.
Pascal The SI unit of pressure.
Plasma Matter consisting of positively and negatively charged particles.
Pressure Force exerted per unit area.
Thermal Expansion An increase in the size of a substance when the temperature is increased.
Viscosity The resistance to flow by a fluid.
Created by: Christopher H.