Chem Ch.11
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30 terms
Terms | Definitions |
|---|---|
 pressure = | force/area |
| the atmospheric pressure decreases with | increasing altitude |
| instrument used to measure atmospheric pressure | barometer |
| as the atmospheric pressure increases, the height of the mercury in the column will | increase |
| measures gas pressure in a closed container | manometers |
| who developed the law of partial pressures? | John Dalton |
| the pressure of each gas in a mixture is called the | partial pressure of the gas |
| the pressure exerted by each component gas does not change because of the presence of the other | gases in the mixture |
| the total pressure inside the collection bottle will be equal to the.. | atmospheric pressure |
| the amount of space that matter occupies | volume |
| the measure of the average energy of motion of particles of a substance | temperature |
| as the speed of gas particles increase, their energy | increases |
| the force of outward push of a gas divided by the area of the walls of the container | pressure |
| a gas flows from an area of high pressure to an area of | low pressure |
| pressure and volume | boyle |
| the measure of the speed of the gas particles | temperature |
| the higher the temp. of the gas, ( ) the gas particles are moving | faster |
| volume and temperature | charles |
| pressure and temperature | gay-lussac |
| a gas sample often experiences changes in temperature, pressure, and volume all at the same time | combined gas law |
| AL: equal volume of gases at the same temperature and pressure contain equal numbers of | molecules |
| AL: at the same temperaturea nd pressure, the volume of a gas varies directly with the number of | molecules |
| AL: at the same temperature and pressure, the volume of a gas varies directly with the number of | moles |
| at the same temperature, in 1 mole of fas occupies 5 L, then 2 moles of the gas will occupy | 10L |
| because of Avogardo's Law one mole of any gas has the same ( ) as any other gas at the same temperature and pressure | volume |
| standard molar volume is equal to | 22.4 L |
| relationship among pressure, volume, temperature, and the number of moles of gas | ideal gas law |
| the gradual mixing of two or more gases due to their spontaneous, random motion | diffusion |
| the process where molecules of a gas confined in a container randomly pass through a tiny opening in the container | effusion |
| the rates of effusion of gases at the same temperature and pressure are inversely proportional to the square root of their molar masses | Graham's law of effusion |
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