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ch.16 vocab
Term | Definition |
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Kinetic thoeory | is 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 liquid boils. |
heat of vaporization | is the amount of energy required for the liquid at its boiling point to become gas. |
diffusion | is the spreading of particles throughout a given volume until they are uniformly distributed. |
plasma | is matter consisting of positively and negatively charged particles. |
thermal expansion | is an increase in the size of a substance when the temperature is increased. |
buoyancy | is the ability of a fluid,liquid, or gas to exert an upward force on an object immersed in it. |
pressure | the force exerted per unit area. |
viscosity | the resistance to flow by a fluid. |
pascal | the unit used to measure pressure. |