| Term | Definition |
|---|
| Real gases | Unlike an ideal gas, the molecules of ______ have both volume and an attraction for one another. |
| Boyle’s law | ________ states that the pressure exerted by a gas varies inversely with its volume, if the amount and temperature of the gas remain constant. |
| Diffusion | Detecting the odor of a substance released from an open bottle across a room is made possible by ______, the random scattering of gas molecules. |
| Standard atmospheric pressure | 101.325 kilopascals is _______. |
| Graham’s law | __________ states that under identical conditions of temperature and pressure, two gases’ relative diffusion rates vary inversely with the square roots of their molecular masses. |
| Point masses | ________ are considered to have no volume or diameter because they are so small and so far apart. |
| Adiabatic system | A(n) _____ allows no heat exchange with the surroundings. |
| Ideal gas | A(n) ______ is composed of molecules with mass, but with no volume and no mutual attraction between the gas molecules. |
| Charles’s law | The equation V = kT (volume of a quantity of gas varies directly with the Kelvin temperature) represents _________. |
| Standard temperature | _________, or 0◦C, is one of two standards used to compare volumes of gas. |
| Dalton’s law | Adding partial pressures of all the gases in a container to find the total pressure in the container demonstrates ________. |
| STP | ________ indicates that a gas has been measured at standard conditions. |
| Avogadro’s principle | The following statement is called _______; At equal temperatures and equal pressures, equal volumes of gases contain the same number of molecules. |
| Molar volume | The ______ of a gas is the volume occupied by one mole of the gas under standard conditions. |
| Ideal gas equation | PV=nRT, which represents the relationship among pressure, temperature, volume, and moles of a gas, is called the _______. |
| kPa | a unit for pressure (P) |
| cm3 | a unit for volume (V) |
| K | a unit for Temperature (T) |
| n | represents moles in the ideal gas equation |
| R | the Boltzmann constant , equal to 8.31J/mol K |
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