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- The figure is a histogram showing the speeds of the molecules in a very small gas. (Figure 1) Figure N 4- 3 2 ili. 4 6 8 2 v (m/s) What is the most probable speed? Express your answer with the appropriate units. Value Submit Part B μA Submit Value Part C What is the average speed? Express your answer with the appropriate units. μÅ • Request Answer Value Units μÅ 4 Units Request Answer ? What is the rms speed? Express your answer with the appropriate units. Units ? ?Part A 5.0 g of nitrogen gas at 20° C and an initial pressure of 2.2 atm undergo a constant-pressure expansion until the volume has tripled. What is the gas volume after the expansion? Express your answer with the appropriate units. • View Available Hint(s) µÀ V = Value Units Submit ▼ Part B What is the gas temperature after the expansion? Express your answer in kelvins. • View Available Hint(s) ΑΣφ T = KThe rms speed of the molecules in 1.2 g of hydrogen gas is 1800 m/s. What is the total translational kinetic energy of the gas molecules? Express your answer with the appropriate units. Etotal = Submit Part B Value Request Answer Units What is the thermal energy of the gas? Express your answer with the appropriate units. ?
- At what pressure will the mean free path in room-temperature (20°C) nitrogen be 0.70 m? Express your answer with the appropriate units. ▸ View Available Hint(s) p= Value Submit Previous Answers Units B ?Directions: Solve the following problems. Use g = 9.80 m/s? and assume all numbers are accurate to 3 significant figures unless otherwise indicated. 1. A cylinder that has a 41.0-cm radius and is 50.0 cm deep is filled with air at 29.5°C and 1.00 atm shown in figure (a). A 21.0-kg piston is now lowered into the cylinder, compressing the air trapped inside as it takes equilibrium height hi as shown in figure (b). Finally, a 21.5-kg dog stands on the piston, further compressing the air, which remains at 29.5°C as shown in figure (c). What is the value Ah? Ah 50.0 cm h;What is the rms speed of argon atoms at 845 °C? Express your answer with the appropriate units. ▸ View Available Hint(s) Submit Part B HA Value Units ? What is the rms speeds of hydrogen molecules at 845 °C? Express your answer with the appropriate units. ہے
- Part A A cube 21 cm on each side contains 3.2 g of helium at 20°C. 1300 J of heat are transferred to this gas. What is the final pressure if the process is at constant volume? Express your answer with the appropriate units. • View Available Hint(s) µA = Value Units Submit Part B What is the final volume if the process is at constant pressure? Express your answer with the appropriate units. • View Available Hint(s) µÀ V = Value UnitsEach molecule of the diatomic gas carbon monoxide contains one carbon atom and one oxygen atom. If at 0°C, its pressure is 4.80 x 10 Pa, treat it as an ideal gas and find the density of carbon monoxide. The atomic mass of carbon is 12.0 u and for oxygen it is 16.0 u. ]kg/m3 Additional Materials Reading CS Scann dwith CamScannerII A volume of 26.5 mL of nitrogen gas was collected in a tube at a temperature of 17° C and a pressure of 737 mm Hg. The next day the volume of the nitrogen was 27.1 mL with the barometer still reading 737 mm Hg. What was the temperature on the second day? •K
- Consider an ideal gas at 27.0 degrees Celsius and 1.00 atmosphere pressure. Imagine the molecules to be uniformly spaced, with each molecule at the center of a small cube. Part A What is the length L of an edge of each small cube if adjacent cubes touch but don't overlap? Express your answer numerically in meters. ► View Available Hint(s) L = for Parval for PartAddo for Part Submit redo for Part A reset for Part A keyboard shortcuts for Part A help for Part A mIP A gas has a temperature of 310 K and a pressure of 102 kPa Part A Find the volume occupied by 1.15 mol of this gas, assuming it is ideal. Express your answer using three significant figures. 3 Vgas = 2.90x10-² m Submit Correct Part B Vmolecules √gas Previous Answers Assuming the gas molecules can be approximated as small spheres of diameter 3.0x10-10 m, determine the fraction of the volume found in part A that is occupied by the molecules. Express your answer using two significant figures. Submit || VE ΑΣΦ Previous Answers Request Answer X Incorrect; Try Again; One attempt remaining Review ?Constants Periodic Table Assume all temperatures to be exact, and neglect significant figures for small changes in dimension. On a warm day (92 °F), an air-filled balloon occupies a volume of 0.300 m³ and has a pressure of 24.0 lb/in?. Part A If the balloon is cooled to 32 °F in a refrigerator while its pressure is reduced to 14.7 lb/in?, what is the volume of the air in the container? (Assume that the air behaves as an ideal gas.) nνα ΑΣφ V = 0.170 m3 Submit Previous Answers Request Answer X Incorrect; Try Again; 6 attempts remaining