PHY 1122 Chapter Notes - Chapter 13: Ideal Gas, Thermal Expansion, Root Mean Square
3 Mar 2015
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Phy1122 a discussion group february 4, 5 2015. The temperature of low pressure hydrogen is reduced from 100 c to 20 c. The rms speed of its molecules decreases by approximately: 80%, 89%, 46%, 21%, 11%. Answer: e: 6. 9 10-8 m, 9. 3 10-8 m, 3. 3 10-7 m, 1. 7 10-6 m, 2. 3 10-6 m. Answer: e: 61 n, 250 n, 290 n, 220 n, 132 n. A certain ideal gas has a temperature 300 k and a pressure 5. 0 104 pa. The molecules have a mean free path of 4. 0 10-7m. 350 k and the pressure is reduced to 1. 0 104 pa, the mean free path is then. When jam is preserved in glass jars, the jar is nearly filled with the jam, leaving an air space of only about 10 cm3. The jar is closed with a rubber-gasketed cover. 6 cm in diameter that allows gas to escape but prevents gas from entering the jar.
