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Chapter 16 Vocab.
Term | Definition |
---|---|
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. |
Heat of Fusion | Amount of energy required to change a substance from the solid phase to the liquid phase. |
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. |
Heat of Vaporization | The amount of energy required for the liquid at its boiling point to become a gas. |
Diffusion | Spreading of particles throughout a given volume until they are uniformly distributed. |
Plasma | Matter consisting of positively and negatively charged particles. |
Thermal Expansion | Increase in the size of a substance when the temperature is increased. |
Buoyancy | Ability of a fluid-a liquid or a gas-to exert an upward force on an object immersed in the fluid. |
Pressure | Amount of force exerted per unit area; SI unit is the pascal (Pa). |
Viscosity | A fluid's resistance to flow. |
Pascal | SI unit of pressure. |