| A | B |
| Absolute Zero | Temperature when everything stops moving -273.15C. |
| Atmosphere of Pressure (atm) | Average sea level pressure. |
| Barometer | Tool used to measure atmospheric pressure. |
| Boyle’s Law | Volume and pressure are inversely proportional. |
| Charles’s Law | Volume of a fixed mass of gas varies directly with the temperature in Kelvin. |
| Combined Gas Law | Expresses the difference between pressure, volume, and temperature of a fixed amount of gas. |
| Dalton’s Law of Partial Pressure | The total pressure exerted by a mixture of gasses is the sum of all the partial pressures. |
| Diffusion | The movement of materials from higher concentration to lower concentration. |
| Effusion | The movement of gas particles between two containers through a small opening. |
| Elastic Collision | A collision when there is no loss in energy |
| Fluids | Having the ability to flow and fill a given volume. |
| Gas Laws | The mathematical relationship between the volume, temperature, pressure, and quantity of a gas. |
| Gay-Lussac’s Law | Pressure and temperature of a given amount of gas are directly proportional. |
| Ideal Gas | An imaginary gas that behaves perfectly according to the Kinetic Theory. |
| Kinetic Theory | Objects are always in motion and these motions can have consequences. |
| Millimeters of Mercury (mm Hg) | Common unit of pressure. |
| Newton | SI unit of force, kilogram by meter per second squared. |
| Partial Pressure | The pressure exerted by each of the gasses in a mixture. |
| Pascal | SI unit for pressure with the force of one Newton per meter squared. |
| Pressure | Force per unit area. |
| Real Gas | Doesn’t behave completely according to the assumptions of the kinetic theory. |
| Standard Temperature and Pressure (STP) | Is the conditions where there is 1 atm of gas at 0C. |
| Torr | Measure of pressure named to honor Torricelli. |