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18 Cards in this Set
- Front
- Back
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Define Charles' Law
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( V1 / T1 ) = ( V2 / T2 )
Volume is directly proportional to temperature at a constant pressure. |
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Define Avagadro's Law
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( V1 / n1 ) = ( V2 / n2 )
Volume is directly proportional to the moles of gas at constant temperature and volume. |
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Define Boyle's Law
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P1V1 = P2V2
Volume is inversely related to pressure when temperature is constant. |
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What is the magnitude and unit of the Ideal Gas Constant?
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R = .08206 (liters * atm) / (mol * Kelvin)
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Define the Ideal Gas Formula
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PV = nRT
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What are the measuring units for the following:
a) pressure b) temperature c) volume |
a) atmospheres (atm = 760 mmHg)
b) Kelvin c) Liters |
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Density of a gas is measured in what unit?
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grams/ Liters
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Define STP conditions.
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1 mole, 273 K, 1 atm, V = 22.4L
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The formula for density of a gas at STP is:
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molar mass / molar volume (22.4 L)
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The formula for density of a gas at non-STP conditions is:
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density = PM / RT
M = molar mass |
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Define Dalton's Law of Partial Pressures.
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When multiple gases occupy the same space, the total pressure is equal to the sum of the pressures of the individual gases present.
Total Pressure = P1 + P2 + P3 + .... |
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Define Mole Fraction
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Mole Fraction = n / total n
# of moles of a particular gas divided by the total moles of gases present. |
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Formula to convert degrees Celsius to degrees Kelvin
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K = degrees C + 273.15
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Conversion factor for atmospheres to pounds/square inch (psi)
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1 atm = 14.7 psi
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Conversion factor for mmHg (Torr) to atmospheres
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1 atm = 760 mmHg
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Describe the function of Charles' Law
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as TEMPERATURE increases, VOLUME increases
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Describe the function of Avagadro's Law
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as the amount (MOLES) of gas increases, VOLUME increases
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Describe the function of Boyle's Law
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As PRESSURE increases, VOLUME decreases
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