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Chapter 16 vocab

vocabulary

TermDefinition
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 at 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 teh surface of the liquid
heat of vaporization 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 uuntil they are uniformly distributed
plasma matter consisting of positively an 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: jtorres3
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