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12 Cards in this Set

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