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35 Cards in this Set
- Front
- Back
- 3rd side (hint)
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The amount of force per area is called: |
Pressure |
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What is an atm? |
Atmospheric pressure unit of measure in inches. 1 atm = 29.9 inches |
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What is torr? |
Atmospheric pressure measure. 760 torr = 1 atm = 101325 pascals |
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The pressure of a gas is 8.25 * 10^4 pa. What is atm of this gas? |
8.25*10^4 pa * 1 atm/101325 pa |
= .81 atm |
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The pressure of a gas is 8.25*10^4 pa. What is torr for this gas? |
8.25*10^4pa * 1 atm/ 101325pa * 760torr/ 1 atm |
618.8 torr |
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Boyle’s law |
For a given mass of gas at a constant temperature volume varies inversely with pressure |
V = constant/P |
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V = constant/P |
Boyle’s law. volume is inverse of pressure |
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What is the Ideal gas law equation. Gas behaves according to predicted linear relationship. |
P1 V1 = P2 V2 |
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P1V1 = P2V2 solve for V2 |
V2 = P1V1/ P2 |
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P1V1 = P2V2 solve for P2 |
P2 = P1V1 / V2 |
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Gases in a mixture behave independently and exert the same pressure they would exert if they were in a container alone. |
Dalton’s law of partial pressure |
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How to calculate molar mass from density |
n=PV/RT —> mass (g) / moles |
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Density formula |
D=M/V |
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Convert torr to atm |
X torr = atm/760 torr |
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P = Pa + Pb + Pc ... |
Sum of partial pressures Dalton’s law of partial pressures |
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Kinetic molecular theory 1 |
Gases are composed of small and widely separated particles |
Spacing |
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Kinetic molecular theory 2 |
Particles of gas behave independently of one another |
Independent behavior |
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Kinetic molecular theory 3 |
Each particle is in rapid straight line motion until it collides with another particle or container. |
Collision, trajectory, speed |
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Kinetic molecular theory 4 |
The pressure of a gas is the sum of the collisions of the particles with the walls of the container. |
What happens when gas collides with walls of container? |
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Kinetic molecular theory 5 |
Average kinetic energy is dependent on absolute temperature. |
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Front (Term) |
Average kinetic energy equation KE = kinetic energy m = mass of gas particle |
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The Movement of gas particles from regions of high concentration to low concentration is called: |
Diffusion of gas |
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Which gas particle moves slower? Heavy or light |
Heavy |
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The passage (escape) of gas through a small opening into a vacuum is called: |
Effusion |
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If pressure is constant volume and temperature are directly proportional to each other V1/T1 = V2/T2 |
Charles’s law |
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When at a given temperature and pressure, equal volumes of all gases contain equal numbers of moles, is known as: |
Molar volume |
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Volume _______ as moles of gas ___________? |
Increase Increase V1 Moles1 = V2 Moles2 |
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V1/N1 = V2/N2 |
Avogadro hypothesis. Volume and moles of gas correspond |
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Moles and mass from volume |
If you have the volume of gas in a chemical reaction use the gas laws to calculate the amount of product moles and mass |
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Moles and mass from volume path |
Volume gas -> PV=nRT -> Moles of gas -> Mole ratio from chem equation -> Product moles -> Molar mass equation -> Product grams |
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The formula for pressure is |
P = F/A |
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Convert atm to torr |
1 atm = 760 torr |
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Convert atm to inches (hg) |
1 atm = 29.9 inches |
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What is pa (pascals) |
An atmospheric unit of pressure. 1 atm = 101325 pa |
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1 atm = 29.9 inches = 760 torr = 101325 pascals |
1 atm = 29.9 inches = 760 torr = 101325 pascals |
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