click below
click below
Normal Size Small Size show me how
chapter 16 vocab_
Question | Answer |
---|---|
boiling point | the temperature at which the pressure of the vapor in the liquid is equal to the external pressure action on the surface of the liquid. |
buoyancy | ability of a fluid- a liquid or a gas to exert 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 phase 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 a 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 | increse in the size of a substance when the temperature is increased. |
viscosity | a fluid's resistance to flow. |