| A | B |
| Pressure | The force per unit area exerted on an object |
| Pascal (Pa) | Pressure measurement with units of Newtons/square meters |
| Five units of pressure measurement: | atm (atmosphere), torr, Pa, (Pascals) mmHg (millimeters of mercury) |
| Boyle's Law | As long as the temperature of a gas stays the same throught an experiment, the product of a gas' volume and its pressure is always the same (PV = constant OR P1V1 = P2V2) |
| Charles's Law | At constant pressure, the temperature and volume of a gas are linearly proportional |
| Absolute temperature scale | Kelvin is this, because 0.00 K cannot be reached |
| Extrapolation | Following an established trend in the data even though there is no data available for that region |
| Combined Gas Law | P1V1/T1 = P2V2/Y2 |
| Ideal gas | Molecules (or atoms) are very small compared to the total volume available to gas; they are far apart so that there is no attraction or repulsion between them; no energy can be lost when molecules collide with each other or with the walls of container |
| Vapor pressure | The pressure exerted by the vapor which sits on top of any liquid |
| Boiling point | The temperature at which the vapor pressure of a liquid is equal to normal atmospheric pressure |
| Dalton's Law | Pt = P1 + P2 + P3 + ... |
| Mole fraction | X = # of moles of component/total # of moles in the mixture |