1. The number of molecules in 1atm of gas at constant pressure and temperature is identical,regardless of the identity of the molecules in the gas. Which ofthe following other statements are also true?
A) The molecules in a gas slow down with increasingtemperature.
B) The total number of atoms in the gas at standard temperature andpressure can vary depending on the identity of the gas
C) The volume of a gas is independent of the pressure of thegas.
D) The temperature of a gas is independent of the pressure of thegas.
2. In an ideal gas, P*V = n*R*T where P = pressure, V=volume,n=number of moles, R=gas constant, and T=temperature. Consider agas with pressure = 1 atm, 1 mole of molecules, and a temperatureof 295 K. R=0.082 atm*L/(mol * K). How much volume should this gasoccupy? Choose the closest answer.
A) 1.0 L
B) 30.6 L
C) Infinite space
D) 22.4 L
3. Suppose you conducted an experiment using Helium gas. Giventhat Helium is much lighter than Propane and Butane, you wouldexpect the relationship between the volume of helium and thepressure to be:
A) exponential, because Helium is lighter
B) inversely proportional, just like propane and butane
C) directly proportional, just like propane and butane
D) periodic, because Helium is lighter
4. What do you predict would happen if you conducted anexperiment using sulfur hexafluoride (SF6) which is much heavierthan methane or butane?
A) The volume of SF6 would be larger and this would affect thepressure in the flask
B) The relationship between temperature and volume would beinversely proportional for a gas of higher molecular weight
C) The speed of the SF6 gas molecules would be faster causing adifference in the temperature measurements
D) The relationship between temperature and volume would bedirectly proportional just as it was for methane and butane
1. The number of molecules in 1atm of gas at constant pressure and temperature is identical,regardless of the identity of the molecules in the gas. Which ofthe following other statements are also true?
A) The molecules in a gas slow down with increasingtemperature.
B) The total number of atoms in the gas at standard temperature andpressure can vary depending on the identity of the gas
C) The volume of a gas is independent of the pressure of thegas.
D) The temperature of a gas is independent of the pressure of thegas.
2. In an ideal gas, P*V = n*R*T where P = pressure, V=volume,n=number of moles, R=gas constant, and T=temperature. Consider agas with pressure = 1 atm, 1 mole of molecules, and a temperatureof 295 K. R=0.082 atm*L/(mol * K). How much volume should this gasoccupy? Choose the closest answer.
A) 1.0 L
B) 30.6 L
C) Infinite space
D) 22.4 L
3. Suppose you conducted an experiment using Helium gas. Giventhat Helium is much lighter than Propane and Butane, you wouldexpect the relationship between the volume of helium and thepressure to be:
A) exponential, because Helium is lighter
B) inversely proportional, just like propane and butane
C) directly proportional, just like propane and butane
D) periodic, because Helium is lighter
4. What do you predict would happen if you conducted anexperiment using sulfur hexafluoride (SF6) which is much heavierthan methane or butane?
A) The volume of SF6 would be larger and this would affect thepressure in the flask
B) The relationship between temperature and volume would beinversely proportional for a gas of higher molecular weight
C) The speed of the SF6 gas molecules would be faster causing adifference in the temperature measurements
D) The relationship between temperature and volume would bedirectly proportional just as it was for methane and butane
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