Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Vocab. 13.1-13.2
| Question | Answer |
|---|---|
| kinetic-molecular theory | describes the behavior of gases in terms of particles in motion |
| elastic collision | collision in which no kinetic energy is lost |
| Temperature | a measure of the average kinetic energy of the particles in a sample of matter. |
| Diffusion | the term used to describe the movement of one material through another. |
| Graham’s law of effusion | states that the rate of effusion for a gas is inversely proportional to the square root of its molar mass. |
| Pressure | force per unit area |
| barometer | an instrument used to measure atmospheric pressure |
| One pascal is equal to a force of | one newton per square meter: 1 Pa 1 N/m2; measures pressure |
| One atmosphere is equal to | 760 mm Hg or 760 torr or 101.3 kilopascals (kPa); measures atmospheric pressure |
| Dalton’s law of partial pressures | states that the total pressure of a mixture of gases is equal to the sum of the pressures of all the gases in the mixture. |
| Dispersion forces | weak forces that result from temporary shifts in the density of electrons in electron clouds. |
| dipole–dipole forces | Attractions between oppositely charged regions of polar molecules |
| hydrogen bond | a dipole–dipole attraction that occurs between molecules containing a hydrogen atom bonded to a small, highly electronegative atom with at least one lone electron pair. |
| amorphous solid | one in which the particles are not arranged in a regular, repeating pattern. |
| boiling point | temp. @ which vapor pressure of a liquid= atm pressure |
| condensation | gas or vapor --> liquid |
| crystalline solid | solid whose atoms, ions, molecules are arranged in geometric, orderly, 3D structure |
| deposition | process by which gas or vapor --> solid (skips liq. phase) |
| evaporation | liquid --> gas |
| freezing pt. | temp. @ which liq. --> crystalline solid |
| melting pt. | pt. @ which crystalline solid --> liq. |
| phase diagram | graph of pressure vs. temp that shows in which phase a substance exists under diff. conditions of temp + pressure |
| sublimation | solid --> gas (skips liq. phase) |
| surface tension | energy required to increase surface area of a liq. by a given amt. |
| surfactants | cmpnds. that lower surface tension of water; "surface active agents" |
| triple pt | pt. on a phase diagram that represents the temp + pressure @ which all 3 phases of a substance can coexist |
| unit cell | smallest arrangement of connected pts. that can be repeatedin 3 directions to form lattice of a crystalline solid |
| vaporization | liquid --> a gas or vapor |
| vapor pressure | pressure exerted by a vapor over a liq. |
| viscosity | measure of the resistance of a liq. to flow |
Created by:
hcmeek
Popular Chemistry sets