A sample of O2 gas is observed to effuse through a porous barrier in 7.64 minutes. Under the same conditions, the same number of moles of an unknown gas requires 12.7 minutes to effuse through the same barrier. The molar mass of the unknown gas is g/mol.

Q: At a given temperature and pressure, it takes 9.48 minutes for a 1.5 L sample of He to effuse…

A: In this question, we want to determine the time for F2 effuse under given temperature and pressure.…

Q: A sample of gas is manipulated so that its temperature (in K) triples and its volume is reduced to…

A: An ideal gas will follow the ideal gas equation. The ideal gas equation is given by PV=nRT, where P,…

Q: A 6.00 L tank at 11. °C is filled with 12.3 g of sulfur hexafluoride gas and 5.56 g of chlorine…

A: A 6.00 L tank at 11. °C is filled with 12.3 g of sulfur hexafluoride gas and 5.56 g of chlorine…

Q: A mixture of oxygen and carbon dioxide gases contains oxygen at a partial pressure of 583 mm Hg and…

A: The mole fraction of oxygen and carbon dioxide is calculated as,

Q: Calculate the molar mass of the unknown gas. (Remember that the faster the rate of effusion, the…

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Q: vessel contained N2, Ar, He, and Ne. The total pressure in the vessel was 987 torr. The partial…

A: According to the Dalton’s law For a non-reacting gaseous mixture sum of partial pressure of…

Q: A sample of Helium gas is observed to effuse through a pourous barrier in 5.26 minutes. Under the…

A: Given, effusion time He gas =5.26 minuteseffusion time of unknown gas =17.1 minutesboth the gas has…

Q: At 304.8 K, a 9.58 L tank contains 1.90 moles of H2 gas under a certain pressure in atm. Calculate…

A: Given, Volume = 9.58 L Number of moles = 1.90 mol Temperature = 304.8 K

Q: CO2 effuses 1.42 times more rapidly than the unknown gas. What is the molar mass of the unknown gas?

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Q: It takes 161 s for an unknown gas to effuse through a porous wall and 97 s for the same volume of N2…

A: rate of effusion is inversely proportional to the  under root of molecular mass. And directly…

Q: A 9.60 L container holds a mixture of two gases, gas A and gas B, at 45 °C. The partial pressures of…

A: Here we are required to find the total pressure of the system .

Q: If a gas mixture in a container consists of 500 torr Ne, 250 torr He, and 10 torr H2, what is the…

A: The given mixture of gases consists of neon, helium and hydrogen. The total pressure of the gases is…

Q: Describe the fundamental of the diffusion of gases in Dalton’s law?

A: We have to describe the fundamental of the diffusion of gases in Dalton’s law

Q: Under identical conditions, separate samples of O₂ and an unknown gas were allowed to effuse through…

A: The rate of effusion of a gaseous substance is inversely proportional to the square root of its…

Q: The gaseous composition of exhaled breath of air by number analysis of the number of moles is 74.8%…

A: Answer:- This question is answered by using the simple concept of Daltons's partial pressure law…

Q: A 6.96 gram sample of an unknown gas is found to occupy a volume of 2.10 L at a pressure of 912 mmHg…

A: Given that: mass of sample = 6.96 g volume of gas = 2.10 L pressure of gas = 912 mmHg temperature =…

Q: Chlorine pentafluoride gas is collected at 9.0°C in an evacuated flask with a measured volume of…

A: Given :-  pressure of gas = 0.410 atm  volume occupied by gas = 5.0 L  temperature = 9.0°C  To…

Q: 1.50 grams of nitrogen (N₂) gas is sealed in a 750.00 ml container at 35.0°C. Calculate the pressure…

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Q: A 1.00 m3 container holds a sample of O2 gas. At 287 K the pressure of the container is 1.06 x 105…

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Q: A gaseous mixture contains 421.0 Torr H₂(g), 339.1 Torr N₂(g), and 89.5 Torr Ar(g). Calculate the…

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Q: A mixture contains O2 at 700. torr pressure, F2 at 900. torr pressure, and Cl2 at 400. torr…

A: Given that, Pressure of O2=700 torr pressure of F2=900 torr pressure of Cl2=400torr then,

Q: A gaseous mixture consisting of 0.584 grams of H2(g) and 17.2 grams of N2(g) occupies 10.0 liters at…

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Q: Under identical conditions, separate samples of O2 and an unknown gas were allowed to effuse through…

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Q: Under identical conditions, separate samples of O2 and an unknown gas were allowed to effuse through…

A: To Calculate molar mass of unknown gas , we would use the relation between rate of effusion and…

Q: the same barrier. The molar mass of the unknown gas is ____g/mol.

A: We have to find molar mass of the unknown gas

Q: At 304.8 K, a 9.58 L tank contains 1.90 moles of H2 gas under a certain pressure in atm. Calculate…

A: Ideal gas equation is, PV= nRT Where, P=pressure, V=Volume, n =number of moles R=gas constant…

Q: A porous container is filled with 5.00 atm of hydrogen gas. After 2.00 hr the pressure decreased to…

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Q: The mass of an evacuated 255 mL flask is 143.187 g. The mass of the flask filled with 267 torr of an…

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Q: A gas mixture consists of equal masses of methane (molecular weight 16.0) and argon (atomic weight…

A: Number of mole is calculated by dividing given mass with molecular mass.

Q: and gas B has a molar mass of 24.28 g. If each gas is introduced at the opposite end of a 1.5 m…

A: Graham's law of diffusion states that the rate of diffusion of a gas is inversely proportional to…

Q: container was filled with 0.893 moles of N2, 0.687 moles of O2, 0.734 moles of H2, and 0.248 moles…

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Q: 1.329 x 10–2 L of H2 (g) is collected over water at a total gas pressure of 744 torr and a…

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Q: moles of argon gas at 25 °C and a pressure of 740 torr. The container is heated to 125 °C and the…

A: Initial Temperature = 25°c = 298 K Final Temperature =125 °c = 398 K Initial Moles (n1) = 0.40 mole

Q: A sample of Kr gas is observed to effuse through a porous barrier in 5.98 minutes. Under the same…

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Q: A 2.00 m3 container holds a sample of O2 gas. At 287 K the pressure of the container is 1.04 x 105…

A: Given,  Volume of the container, V = 2.00 m3                                                 = 2000…

Q: A 0.916 gram sample of an unknown gas is found to occupy a volume of 0.789 L at a pressure of 515 mm…

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Q: A mixture contains O2 at 700. torr pressure, F2 at 600. torr pressure, and Cl2 at 400. torr…

A: Given that, PO2=700 torr, PF2=600 torr PCl2=400 torr

Q: A fixed amount of gas at 25.0 °C occupies a volume of 10.0 L when the pressure is 629 torr. Use…

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Q: At 304.8 K, a 9.58 L tank contains 1.90 moles of H2 gas under a certain pressure in atm. Calculate…

A: Given, Volume = 9.58 L Number of moles = 1.90 mol Temperature = 304.8 K

Q: The behavior of 485 mL of an ideal gas in response to pressure is studied in a vessel with a movable…

A: The equation which relates pressure, volume, temperature, number of moles and temperature with each…

Q: A mixture of gases consists of helium at a partial pressure of 400. torr, neon at a partial pressure…

A: Applying concept Doltons rule P= PHe+ PN2+ PAr

Q: A gas mixture has partial pressures of 90. mm Hg O2, 150 mmHg Ar, and 325 mmHg CO2. What is the mole…

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Q: A mixture of 2.50 moles of Argon, 3.00 moles of Iodine, 4.50 moles of CO2, and 6.00 moles of…

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Q: It takes 192 s for an unknown gas to effuse through a porous wall and 84 s for the same volume of N2…

A: Graham's law of effusion: Graham's law of effusion states that the rate of effusion of a gas is…

Q: A 1.40 m3 container holds a sample of O2 gas. At 282 K the pressure of the container is 1.04 x 105…

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Q: The mass percent of a three component gas sample is 6.40% C2H4, 38.2% C4H8 and 55.4% N2H4. Calculate…

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Kinetic-Theory of Gases

Kinetic theory of gases is the model or method which was developed in the 19th century by Maxwell and Boltzmann. This is possible as the interatomic force which is of short-range forces that are important for solids and liquids can be neglected for gases. This theory or gas law gives a molecular interpretation of the pressure and temperature of a gas and is consistent with gas laws and Avogadro’s hypothesis. This theory is very helpful to correctly explain the specific heat capacities of many gases, kinetic energy and it also explains the transport qualities such as viscosity, thermal conductivity, and diffusion with molecular parameters. As stated in the kinetic-molecular theory, the temperature of a substance or gas particle is related to the average kinetic energy of the particles of that substance. When a substance is heated, some of the absorbed energy is stored within the particles, while some of the energy increases the motion of the particles, called average kinetic energy.