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Introductory Chemistry Study Set 7

Chemistry

Quiz 6 :

Gases

Quiz 6 :

Gases

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The SI unit of pressure is atmosphereis defined as exactly 760 mmHg. (atm).
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True False
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False

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Avogadro's law states that equal volumes of different gases at the same temperature and pressure contain the same amount of gas.
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True

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Gay-Lussac's law relates volume of a gas with absolute temperature.
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False

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When applying Charles's law, amount of gas and volume are considered to be constants.
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A sample of a gas has an initial volume of 15.0 L and an initial temperature of 235 K. The temperature of the gas increases to 313 K, if its volume increases to 20.0 L.
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P1T1 = P2T2, represents the Charles's law of gases.
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Real gases are ideal.
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One torr is an equivalent unit of one millimeter of mercury, the amount of pressure exerted by a column of mercury exactly 1 mm high.
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According to Gay-Lussac's law, img at constant V and n.
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A 6.00 mol sample of O2 has a pressure of 0.80 atm and a temperature of 68°C. Its volume is 41.8L.
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Robert Boyle invented the mercury barometer.
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The density of O2 is 1.54 g/L at 30°C and 1.20 atm.
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If a 2.45 L volume of gas contains 4.5 × 1021 gas particles, a 4.9 L volume of gas will contain 4.5 × 1022 gas particles.
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An ideal gas is a gas that exactly follows the statements of the kinetic theory.
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Pressure and volume of a gas are inversely related, if other parameters are kept the same.
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Pascal (Pa) is equal to 1 N/m2.
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A sample of a gas has an initial volume of 16.8 L and an initial temperature of 50°C. The volume of the gas increases to 33.6 L if its temperature is increased to 100° C.
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The equation, PV = nRT is called the ideal gas law, a gas law that relates all four independent physical properties of a gas under any conditions..
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According to the kinetic theory of gases, the size of a gas particle is large compared to the distances that separate them.
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The combined gas law considers the amount of gas as a variable.
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