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| 1 . |
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A mixture containing 0.538 mol He(g) and 0.103 mol Ar(g) is confined in a 7.00-L vessel at 25°C. Calculate the partial pressure of helium and the total pressure of the mixture in atm. Online Text [Hint]
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| 2 . |
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A quantity of N2 gas originally held at 3.80 atm pressure in a 1.00-L container at 26°C is transferred to a 10.0-L container at 20°C. A quantity of O2 gas originally at 4.75 atm and 26°C in a 5.00-L container is transferred to this same container. What is the total pressure in the new container? Online Text [Hint]
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| 3 . |
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What is the total vapor pressure in torr of a mixture of H2O(l) and 0.123 mol of CH4(g) at T = 30°C and a total vapor volume of 20.0 L? (The vapor pressure of water is tabulated in Appendix B of the textbook.) Online Text [Hint]
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| 4 . |
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A mixture containing 0.779 mol CH4(g) and 0.976 mol CO2(g) is confined in a vessel. The partial pressure of CH4(g) is 1.82 atm. Calculate the partial pressure of CO2(g) and the total pressure. Online Text [Hint]
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| 5 . |
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A gas mixture contains 50 g of cyanogen, C2N2, and 50 g of CO2. If the total pressure is 2.56 atm, what is the partial pressure of cyanogen? Online Text [Hint]
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| 6 . |
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According to kinetic molecular theory, Online Text [Hint]
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| 7 . |
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Place the following gases in order of increasing average molecular speed at 300 K: CO2, NO2, HF, F2, H2 Online Text [Hint]
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| 8 . |
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Place the following gases in order of increasing average molecular speed at 300 K: Xe, CCl4, IF5 Online Text [Hint]
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| 9 . |
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O2 gas is effused through a pinhole in 5.0 sec. How long will it take an equivalent amount of CO2 to effuse under the same conditions? Online Text [Hint]
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| 10 . |
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Consider the reaction system shown below. Let the red dots in the left flask represent oxygen molecules, and the blue dots in the right flask represent propane (C3H8) molecules. If the two outer flasks are connected to the central flask by pinhole-valve stopcocks and these valves are opened simultaneously, which gas will fill the central flask more rapidly?  Online Text [Hint]
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| 11 . |
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An ideal gas differs from a real gas in that the molecules of an ideal gas Online Text [Hint]
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| 12 . |
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Which of the following gases would you consider to be most "ideal"? Online Text [Hint]
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