It takes 161 s for an unknown gas to effuse through a porous wall and 97 s for the same volume of N2 gas to effuse at the same temperature and pressure. What is the molar mass of the unknown gas?

Q: A sample of Br2(g) takes 22.0 min to effuse through a membrane. How long would it take the same…

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Q: 2. 2.07x10-3 mol of an unknown gas effuses through a tiny hole in 217.25 s. Under identical…

A: Rate of effusion :- The number of moles (n) of a gas effused per unit time (t) is called rate of…

Q: A gas sample is observed to exert a pressure of 600 torr when confined to a 10.0-L vessel at…

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Q: A given volume of nitrogen, N2, required 68.3 mL to effuse from a hole in a chamber. Under the same…

A: Given  rate of N2 = 68.3 s rate of another gas = 85.6 s molar mass of N2 = 28.01 amu  Graham's law…

Q: If it takes 4.67 times as long for a particular gas to effuse as it takes hydrogen under the same…

A: The rate of effusion  is inversely proportional to the molecular mass  r1/r2= (m2/m1) 1/2.  Where m=…

Q: It takes 169 s for an unknown gas to effuse through a porous wall and 97 s for the same volume of…

A: It is given that an unknown gas takes 167 seconds to effuse and nitrogen gas takes 97 seconds to…

Q: What is the ratio of effusion rates for the lightest gas, H₂, andthe heaviest known gas, UF₆?

A: Molar mass of H2 gas =2.00 g/mol Molar mass of UF6 gas =352.02 g/mol

Q: According to Graham's law, if a container has a mixture of H2S, CO2, N2 and Ne, what should be the…

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Q: If helium effuses through a porous barrier in 1.78 min, how much time (in min) would it take the…

A: Answer: 3.67 min it take the same amount of NH3 (ammonia) to to effuse through the same barrier…

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: 2.07x103 mol of an unknown gas effuses through a tiny hole in 217.25 s. Under identical conditions,…

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

Q: Given two gas samples: one of N2 and one of He. If the two samples are at the same temperature,…

A: Given gases: N2 and He These gases are kept at the same temperature. The rate of effusion has to be…

Q: The root-mean-square speed of a gas at -83.62°C is 271.66 m s^-1. what is the molar mass of the…

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Q: If equal amounts of the four inert gases Ar, Ne, Kr and Xe are released at the same time at one end…

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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: A sample of N2O effuses from a container in 44 s.How long would it take the same amount of gaseous…

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Q: A sample of Br2(g) takes 16.0 min to effuse through a membrane. How long would it take the same…

A: Given: Time taken by Br2 to effuse = 16.0 min Number of moles of Br2= number of moles of Ar Time…

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: 7) 8.278 x 10-4 mole of an unidentified gaseous substance effuses through a tiny hole in 86.9 s.…

A: Given: Unidentified gaseous substance is 8.278××10-4 mole effuses in 86.9 s For identical conditions…

Q: It took 6.3 minutes for 25 mL of argon to reach the end of an effusion tube with a porous barrier.…

A: This question is based on Graham's law of effusion, which states that the lighter molecules will…

Q: Calculate the root mean square velocity and kinetic energy of F2, Cl2, and Br2 at 298 K. Rank these…

A: The root-mean square (RMS) velocity is the value of the square root of the sum of the squares of the…

Q: What is the molar mass of the unknown gas?

A: From the above problem, Recall that Graham's Law of Effusion allows us to compare the rate of…

Q: Enter your answer in the provided box. It takes 155 s for an unknown gas to effuse through a porous…

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Q: A sample of xenon gas occupies a volume of 6.95L at 431 K. If the preassure remains constant, at…

A: Given, Initial volume, V1 = 6.95 L Initial temperature, T1 = 431 K Final Volume, V2 = 3.77 L Final…

Q: 2.07x10-3 mol of an unknown gas effuses through a tiny hole in 217.25 s. Under identical conditions,…

A: (a) Given  moles of unkown gas =2.07×10-3molTime of effusion =217.25 smolar mass =m gm/mol   moles…

Q: A sample of SO2 gas is observed to effuse through a pourous barrier in 3.70 minutes. Under the same…

A: Given- Rate of effusion of SO2 gas = 3.70 min Rate of effusion of unknown gas = 1.66 min   To find-…

Q: A sample of unknown gas and N2 are allowed to effuse from the same apparatus. The unknown gas…

A: The given problem is based on the Graham's Law of Effusion. This law is states that the rate of…

Q: How can comparing the rates of effusion of gases X and Y allow the molar mass of Y to be calculated?…

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Q: A sample of N2(g) requires 240 s to diffuse through a porous plug. It takes 530 s for an equal…

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Q: E. A sample of N20 effuses from a container in 42.0 seconds. How long will it take the same amount…

A: We know,  Graham's law states that the rate of diffusion or of effusion of a gas is inversely…

Q: Describe the factors responsible for the deviation of the behavior of real gases from that of an…

A: In the cases of ideal gases, there are no intermolecular forces of attraction within the gas…

Q: The rate at which argon, (Ar) effuses through pinhole is 4.5 ml/min. At what rate will the hydrogen…

A: Relation between rate of effusion and molar mass of gases: R2/R1 = (M1/M2)1/2 Where,  R1 =  rate of…

Q: What is the total pressure exerted by a mixture of 2.00 g ofH2(g) and 8.00 g of N2(g) at 273 K in a…

A: The number of moles of H2 can be calculated as given below. Number of moles of H2 = Mass / molar…

Q: Use the van der Waals equation and the ideal gas equation to calculate the pressure exerted by 1.000…

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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: What is the total pressure exerted by a mixture of 2.00 g ofH21g2 and 8.00 g of N21g2 at 273 K in a…

A: The given data contains, Volume = 10.0 L. Temperature =273 K gas constant R =0.0821 L.atm.mol-1K-1

Q: A sample of So, gas is observed to effuse through a pourous barrier in 1.81 minutes. Under the same…

A: Rate of effusion :- The number of moles of a gas effused per unit time is called rate of effusion…

Q: Neon effuses at a rate of 0.325 moles per second at certain volume, pressure, and temperature. How…

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Q: Calculate the mole fraction of each gas in a mixture of 43.6 g Xe and 36.8 g Kr. S

A: Mole fraction of a component is the ratio of number of moles of that component to the total number…

Q: If it takes 12.0 hours for a volume of nitrogen, N2 to effuse through pores in a balloon, how long…

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Q: There is 2.878 x 10-4 mol of an unidentified gaseous substance effuses through a tiny hole in 98.9…

A: Effusion is the process by which any gaseous substance is escaped from a large system through a tiny…

Q: A sample of N2O effuses from a container in 42 seconds. How long will it take the same amount of…

A: the rate of effusion is guided by many factors.rateN2OrateI2=MI2MN2Owhen container is same, the…

Q: An unknown gas effuses 1.66 times more rapidly than CO2. What is the molar mass of the unknown gas?…

A: Graham's law of effusion: According to Graham's law of effusion the rate of effusion of a gas is…

Q: The label on a tank of gas of unknown origin had been lost. To determine its identity (molecular…

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Q: A gas at constant temperature occupies a volume of 2.40 dm3 and exerts a pressure of 110 kPa.  What…

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Q: A fixed amount of a gas occupies a volume of 4L and exerts a pressure of 410 kPa on the walls of its…

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Q: Use Graham's law of effusion to calculate molar mass. A sample of argon, Ar, effuses through a small…

A: Answer:- This question is answered by using the concept of determination of rate of effusion which…

Q: The pressure 95.7 m under water is 339 kPa. What is this pressure in torr?

A: The given pressure P=339 kPa1Kilopascal is 7.5006 TorrKilopascal value is converted into Torr

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.