Welcome to the Quiz!
This quiz contains 8 questions from a mix of 1 subtopics.
Calculate the number of moles of oxygen molecules there are in a volume of 500 cm3 at a temperature of 25.0°C and a pressure of 100 kPa.
Give your answer to 3 significant figures
R = 8.31 J K-1 mol-1
mol
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Calculate the volume, in dm3, occupied by 0.500 mol of hydrogen at a pressure of 120 kPa and a temperature of 22°C.
Give your answer to 3 significant figures.
R = 8.31 J K-1 mol-1
dm3
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A flask of volume 4.00 dm3 contained 3.5 g of carbon dioxide.
Calculate the pressure, in kPa, exerted by the gas at a temperature of 120°C.
Give your answer to 3 significant figures.
R = 8.31 J K-1 mol-1
Mr of CO2 = 44.0
kPa
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A flask of volume 2.75 dm3 was found to contain 5.70 g of a gas. The pressure in the flask was 180 kPa and the temperature was 20°C.
Calculate the relative molecular mass of the gas.
Give your answer to 3 significant figures.
R = 8.31 J K-1 mol-1
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Which equations describe an ideal gas?
(Select all that apply.).
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Which of the following unit conversions can be achieved by multiplying by 1,000?
cm3 to m3
°C to K
dm3 to m3
kPa to Pa
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Which of the following unit conversions can be achieved by multiplying by 1,000?
m3 to dm3
m3 to cm3
pa to kPa
K to °C
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Which assumptions are correct for particles of an ideal gas?
(Select all that apply).
their volume is negligible
no intermolecular forces exist between particles
their kinetic energy is unrelated to temperature
their collisions are inelastic
their motion is predictable
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