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15 Cards in this Set
- Front
- Back
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What does P stand for?
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the pressure a gas exerts
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What is V
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the volume a gas occupies
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what is N?
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the amount of gas in moles
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what is a mole?
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6.022 X 10 to the 23 molecules
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What is T?
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a measure of the random kinetic energy in a gas in Kelvin
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What is Boyles Law?
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P1V1 = P2V2
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What are the bends?
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pain or paralysis when nitrogen bubbles form in the blood
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Why do astronauts, divers, and bridge workers get the bends?
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Because they all go from high pressure to low pressure in their jobs
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What is Charles Law?
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v1/T1 = V2/T2
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What are two ways to make a vaccuum ?
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1. Take a trapped gas and expand the volume
2. Take molecules out of a closed space (i.e. fire in the flask) |
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How come you can't breathe through a snorkel at 10 feet below but u can breathe under a diving bell?
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Because the pressure on ur chest at 10 feet is 1.3 atmos and the air ur breathing is 1 atmo so the pressure difference makes it impossible to breathe, but with a diving bell theres not a pressure difference
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Pressure = ?
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Force over area
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What did we put into the rocket to make it fly?
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Water and air (120 lbs/in2)
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What makes the rocket fly?
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The air pressure inside is greater than the air pressure outside
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What is the equation involving pressure, temp, volume?
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Pv = Nrt
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