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1. Which of these conditions causes the ideal gas laws to fail?
High Pressure High temperature Large Volume High temp and pressure High temp and large volume

2. At constant temperature, pressure, and volume, which molecule has the highest average velocity?
H2 F2 He Br2 All of the above

3. At constant temperature, pressure, and volume, which gas has the most molecules?
He H2 Cl2 F2 All of the above

4. At 298oK, 800. torr, and 250. mL of gas has a mass of 4.62 grams. What is its molecular weight?
300 46 3.21 0.0107 429

5. 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

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