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Chapter 16 Vocab
| Term | Definition |
|---|---|
| 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 exert an upward force on a 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 a solid phase to a liquid phase |
| Heat of Vaporization | the amount of energy required for the liquid at is 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 |
| Thermal Expansion | increase in the size of a substance when the temperature is increased |
| Viscosity | A fluid's resistance to flow |