2. A balloon occupies a volume of 1.0 liter when it contains 0.08 grams of hydrogen gas at STP. If hydrogen gas is added to the balloon while pressure and temp are kept constant, what will be the new volume?
0.50 L 1.0 L 2.0 L 4.0 L 5.0 L
3. Body temperature is around 308oK. What volume of air at 298oK must a person with a lung capacity of 2.5 L breath in to fill the lungs?
2.58 L 0.00811 L 2.42 L 4.26 L None of the above
4. An ideal gas fills a balloon at 1 atm and 67oC. By what factor will the volume of the balloon change if the balloon is heated to 339oC?
9/5 5.9 1/4 4/1 3/4
5. Calculate the mole fraction of gas A, which has a pressure of 110. torr, in the air, which has a pressure of 800. torr.
0.138 0.427 0.121 4.23 13.8
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