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12 Cards in this Set
- Front
- Back
Boiling Point
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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.
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Buoyancy
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ability of a fluid-a liquid or a gas-to ezert an upward force on an object immersed in the fluid.
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Diffusion
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spreading of particles throughout a given volume until they are uniformly distributed.
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Heat of Fusion
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amount of energy required to change a substance from the solid phaxe to the liquid phase.
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Heat of Vaporization
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the amount of energy required for the liquid at its boiling point to become a gas.
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Kinetic theory
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explanation of the behavior of molecules in matter; states that all matter is made of constantly moving particles that collide without losing energy.
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Melting Point
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temperature at which a solid begins to liquefy.
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Pascal
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SI unit of pressure.
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Plasma
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matter consisting of positively and negatively charged particles.
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Pressure
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amount of force exerted per unit area; Si unit is the pascal (Pa).
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Thermal Expansion
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increase in the size of a substance when the temperature is increased.
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Viscosity
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a fluid's resistance to flow.
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