Question: The table below contains information about samples of four different gases at 273 K. The samples are in four identical rigid containers numbered 1 through 4. The best explanation for the lower pressure in container 4 is that SO2 molecules

Answer: have stronger intermolecular attractions than the other three gases

Question: When the actual gas volume is greater than the volume predicted by the ideal gas law, the explanation lies in the fact that the ideal gas law does NOT include a factor for molecular.

Answer: volume

Question: Which of the following gases deviates most from ideal behavior?

Answer: SO2

Question: A gas mixture at 0°C and 1.0atm contains 0.010mol of H2, 0.015mol of O2, and 0.025molof N2. Assuming ideal behavior, what is the partial pressure of hydrogen gas (H2) in the mixture?

Answer: About 0.20atm, because H2 comprises 20% of the total number of moles of gas.

Question: At standard temperature and pressure, a 0.50 mol sample of H2 gas and a separate 1.0 mol sample of O2 gas have the same

Answer: average molecular kinetic energy

Question: The distribution of speeds of H2(g) molecules at 273 K and 1 atm is shown in the diagram above. Which of the following best shows the speed distribution of He(g) atoms under the same conditions of temperature and pressure?

Answer: He will have larger bump as it has a larger molar mass

Question: A 2 L container will hold about 4 g of which of the following gases at 0°C and 1 atm?

Answer: CO2

Question: Of the following, the best explanation for the fact that most gases are easily compressed is that the molecules in a gas

Answer: are relatively far apart

Question: Ar(g) deviates more from ideal behavior at extremely high pressures than Ne(g) does. Which of the following is one reason for this difference?

Answer: the particle volume of Ar is greater than that of Ne

Question: in which flask has the greatest average speed?

Answer: largest temperature, smallest pressure