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ch. 16 TP

Sections 1,2,3

QuestionAnswer
Kinetic theory an explanation of how particles in matter behave
Melting Point the temperature at which a solid begins to liquify
Heat of fusion energy required to change a substance from the solid phase to the liquid phase at its melting point
boiling point a liquid is the temperature at which the pressure of the the vapor in liquid is equal to the external pressure acting on the surface of the liquid equal to the external pressure is a force pushing down upon a liquid
heat of vaporization amount of energy required for the liquid at its boiling point to become a gas
diffusion the spreading of parical 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 in increased
buoyancy the ability of a fluid a liquid or a gass to exert an upward force on an object immersed in it if the gas to exert an upward force on an object immersed in it
pressure force exerted per unit area
viscosity resistance to flow by a fluid
pascal the measurement of pressure
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