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30 Cards in this Set
- Front
- Back
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pressure is equal to... |
force/area |
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newton
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force that will increase the speed of a one-kilogram mass by one meter per second each second that the force is applied (m/s^2) |
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How do gas molecules exert pressure? |
by colliding with the walls of the container |
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as the area goes down, the pressure goes... |
up |
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what can atmospheric pressure be described as?
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the weight of the gases in the atmosphere combined
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what are the three main things gas pressure depends on?
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temperature, volume, and number of molecules
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barometer |
device used to measure atmospheric pressure |
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manometer |
measure pressure of an enclosed gas sample |
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millimeters of mercury |
the height of the mercury column in a barometer
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torr is equal to... |
1 mmHg |
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atmosphere of pressure
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atm, equal to 760 mmHg |
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pascal |
SI unit for pressure, pressure exerted by a force of one newton acting on an area of one square meter |
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what is STP? |
standard temperature and pressure, 0 degrees C and 1 atm |
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partial pressure |
pressure of each gas in a mixture |
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Dalton's law of partial pressures |
you can get the entire pressure by adding up the individual partial pressures |
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Kinetic-Molecular theory |
each particle has an equal chance of colliding each gas has an independent pressure |
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vapor pressure |
since most gases are measured after passing through water, the gases contain water vapor. to find this, you take Patm=Pgas+PH2O for the equation and plug in to solve |
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Boyle's Law |
P1V1=P2V2 |
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Charles' Law |
V1/T1=V2/T2 |
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absolute temperature |
aka absolute zero, -273 C |
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How do you find Kelvin? |
add 273 to the temperature in Celsius |
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Gay-Lussac's Law |
P1/T1=P2/T2 |
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Combined Gas Law |
P1V1/T1=P2V2/T2 |
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Gay-Lussac's Law of Combining Volumes of Gases |
at constant temperature and pressure, the volumes of gaseous reactants to products are expressed in ratios of small whole numbers (those coefficients in chemical equations? those are liters. essentially.)
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Standard molar volume of a gas |
22.4 L (at STP) |
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Ideal Gas Law |
PV=nRT |
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Graham's Law of Effusion |
rate of effusion of A square root of Mb ____________________ = ___________________ rate of effusion of B square root of Ma |
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use your cheat sheet |
you have it for a reason |
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remember stochiometry? |
this is that but harder. good luck. |
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i believe in you |
so does this dog |
