What is the density of diatomic nitrogen gas (N2) at a temperature of 20.00 C under a pressure of 100 kPa? The atomic mass of nitrogen is 14 g/mole. a. 1.97 kg/m3 b. 1.15 kg/m3 C. 2.33 kg/m3 d. 1.50 kg/m3 e. 2.76 kg/m
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- Which of the following statements is not true according to kinetic theory? a. The molecules in an ideal gas undergo elastic collisions. b. The molecules in an ideal gas only interact during collisions. c. Electrical attractions and repulsions between the molecules must be accounted for in the total energy of the ideal gas. d. The average energy of a molecule in an ideal gas is evenly distributed between the different degrees of freedom of the molecule. e. The energy of an ideal gas only depends on the kinetic energy of the gas.One mole of hydrogen has a mass of 2 g. Calculate the mean speed of the hydrogen molecules at T = 300 K using the Maxwell- Boltzmann distribution. Select one: O a. 1579 m/s O b. 1782 m/s O c. O d. 459 m/s 1934 m/sQUESTION 16 Which of the following statements is not true according to kinetic theory? a. Electrical attractions and repulsions between the molecules must be accounted for in the total energy of the ideal gas. b. The energy of an ideal gas only depends on the kinetic energy of the gas. C. The average energy of a molecule in an ideal gas is evenly distributed between the different degrees of freedom of the molecule. d. The molecules in an ideal gas undergo elastic collisions. e. The molecules in an ideal gas only interact during collisions.
- A container of nitrogen molecules is at a temperature of 37.0°C. What is the mass of a nitrogen molecule in atomic mass units? [Note: nitrogen is a diatomic gas.] а. b. What is the mass of a nitrogen molecule in kilograms? C. What is the average translational kinetic energy of the nitrogen molecules? d. What is the rms speed of the nitrogen molecules? е. What is the average rotational energy of a nitrogen molecule?5. A storage tank contains mass M of oxygen (O₂) at an absolute pressure of P and temperature T. Another tank of the same volume contains the same mass of CO₂ at the same pressure. What is the temperature in the CO₂ tank? (The combined numbers of protons and neutrons in atoms of C and O are 12 and 16, respectively. Do not use moles!).D. 0.2971_kg/mol B. 0.3026_kg/mol 0.0834 kg/mol E. 0.09617 kg/mol C. F. 0.1538_kg/mol 1--1 What is the average kinetic energy of a molecule of oxygen gas (0₂) at a temperature of -25°C? 8 O 16.00 3. 5.061E-21 J D. 6.398E-21 J 5.041E-21 J 5.137E-21 J E. 4.368E-21 J F. 5.862E-21 J [carpet-5] A. B. C. 1--1
- 5. A gas with volume V, pressure P, and temperature T is inside a container with a moveable piston. No gas is leaking from the container as the temperature of gas is quadrupled while the volume is doubled. What will be the new pressure? A. 2P B. P C. 1/2 P D. 8P1. For nitrogen at 283 K find, a) The most probable speed ✔m/s b) The average speed m/s c) The rms speed m/s The molar mass of nitrogen is 14.0 g/mol and R= 8.31 kg/(mol K) Hint: You need to convert quantities into SI units.Q20. A certain gas in a closed container at 0.001 atmospheres of pressure is irradiated with ionizing radiation, causing on average one electron to be stripped off each atom. The ionizing radiation also heats the gas from 20°C to 3000°C. The resulting ionized gas ("plasma") behaves like an ideal gas. What is the pressure in the plasma? a. 4.92'103 Pa b. 3.04'105 Pa O c. 1.23'103 Pa d. 2.26'103 Pa Clear my choice
- 7. The average kinetic energy of the molecules in an ideal gas increase with the volume remaining constant. Which of these statements must be true? a. both the pressure and the temperature increase b. the number density decreases c. the temperature increases, and the pressure stays the same. d. the pressure increases, and the temperature stays the same1. Suppose the amount of air in a person's lungs is 2.2 L, Calculate the number of moles of air molecules in the person’s lungs when the pressure there is atmospheric pressure. Note that the air is at 37.0°C (body temperature). 2. An expensive vacuum system can achieve a pressure as low as 1.05 × 10-7 Pa at 20°C, How many atoms are there in a cubic centimeter at this pressure and temperature?