Helium gas effuses through a porous container 8.25 times faster than an unknown gas. Estimate the molar mass of the unknown gas. Your answer should have three significant figures.

Q: It took 4.5 min for 1.0 L helium to effuse through a porous barrier. How long will it take for 1.0 L…

A: For any certain gas, the rate of effusion is equivalent to the gas's volume that is undergoing the…

Q: A gas effuses through an opening at a rate one-third as fast as that of helium gas. What is the…

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Q: A container contains a mixture of neon and argon. A small hole is drilled into the container,…

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Q: what is the partial pressure of each gas in the total volume?

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Q: A sample of an ideal gas containing 0.628 mol is collected at 543 torr pressure and 31°C. Calculate…

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Q: A sample of Br, (g) takes 48.0 min to effuse through a membrane. How long would it take the same…

A: Graham`s law of diffusion: the rate of effusion of a gas is inversely proportional to the square…

Q: A sample of N2 gas is observed to effuse through a porous barrier in 8.89 minutes. Under the same…

A: Effusion time is directly proportional to the square root of molar mass of gas. T2/T1 =  (M2/M1)1/2…

Q: Whid Not yet answered gases has the lowest rate of effusion? hydrogen helum 2 H Не 1.0079 hium…

A: Given:- Out of five gases:- a) F2 b) SO2 c) CH4 d) CO2 e) N2 We have to find which gas has lowest…

Q: A sample of N2 effuses in 200 s. How long will the same size sample of Cl2 take to effuse?

A: According to graham's law, the relationship between the molar mass of gas and time required for…

Q: 13. A sample of N2 effuses through a hole in 38 seconds. What must be the molecular weight of gas…

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Q: A balloon filled with helium gas is found to take 6 hours to deflate to 50% of its original volume.…

A: If the two gases (A&B) are at the same temperature and pressure, the ratio of their effusion…

Q: A gas whose molar mass you wish to know effuses through an opening at a rate half as fast as that of…

A: A gas whose molar mass you wish to know effuses through an opening at a rate half as fast as that of…

Q: takes 25 seconds for a 2.0 L sample of carbon dioxide to escape through a small hole in a container,…

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Q: A sample of an unknown gas effuses in 11.1 min. An equal volume of H2 gas, in the same apparatus,…

A: Given: Rate of effusion of unknown gas, r1 = 11.1 min Molar mass of unknown gas = M1gmol Rate of…

Q: A sample of NH3 gas is observed to effuse through a pourous barrier in 3.61 minutes. Under the same…

A: According to Graham’s diffusion law, the rate of effusion of gases is inversely proportional to the…

Q: A sample of N2 gas is observed to effuse through a pourous barrier in 1.93 minutes. Under the same…

A: Graham's law interlinks among effusion rates of two specific gases with their respective molar…

Q: a scientist is allowing two different gases to effuse through a filter in a room. If the mass of the…

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Q: A scientist is allowing two different gases to effuse through a filter into a room if the mass of…

A: Mass of first gas = 16 Mass of second gas = 1  Rate of diffusion (r) ∝ 1/M  So molar mass of second…

Q: How much faster do helium atoms effuse from a balloon than do oxygen molecules?

A: According to the graham's law of effusion, where vA = speed of effusion or rate of effusion of gas…

Q: Rank the following gases Xe  Cl2  NO  Kr in order of increasing time of effusion. most time =…

A: The answer to the following question-

Q: 20. Gas A has a greater molar mass than gas B. What is true about their rates of effusion? a. Gas A…

A: Rate of effusion is inversely proportional to the molar mass of that component.  Higher the molar…

Q: What is the ratio of rates of effusion of gas1 to gas 2? MW gas 1 = 44.05 g/mol and MW gas 2 =…

A: Given is, MW gas 1 = 44.05 g/mol and MW gas 2 = 20.22 g/mol

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 the same temperature, which of the following gases will have the fastest rate of effusion? A) CO…

A: We know that, molar mass of CO = 28.01 g/mol molar mass of SF6 = 146.06 g/mol molar mass of Cl2 =…

Q: A closed flask containing nitrogen gas at 745 torr and 154 K is heated to 308 K. What is the new…

A: Gay-Lussac's law- As pressure increases, temperature increases at constant volume Given by equation-…

Q: A sample of oxygen gas collected over water occupies a volume of 210 ml at 22 0C and 750 torr…

A: The sample of oxygen gas collected over water has- Volume = 210 mL = 0.21 L Temperature = 22 oC =…

Q: Experimental studies of solid surfaces and the chemicalreactions that occur on them require very low…

A: Converting pressure from torr to atm, we get:  5×10-10760=7×10-13 atm Hence, the pressure in…

Q: A 500.0-mL sample of H2 gas is collected OVER WATER at 298 K and 747 torr.  What volume would the…

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Q: How much more rapidly does a sample of He(g) effuse than a sample of Ar(g) under the same…

A: We have to calculate the rate of effusion on comparing He and Ar.

Q: A gas whose molar mass you wish to know effuses through an opening at a rate one-third as fast as…

A: A famous chemist “Thomas Graham” stated that the rate of effusion of any gas depends on molar mass…

Q: A sample of argon, Ar, effuses through a small hole at a rate of 9.00×106 mol/h. An unknown gas,…

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Q: Among the gases listed, which would have the highest rate of effusion? NH3 SO₂ NO₂ CH₁

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Q: Can the gas laws be explained by molecular behavior? How can molecular behavior explain gas…

A: Q1) The gas laws can be explained by the molecular behaviour.

Q: Explain the difference between diffusion and effusion. How is the effusion rate of a gas related to…

A: The substances which exist in the gaseous state of matter are termed gases. Gases show compressible…

Q: A sample of Xe takes 75 seconds to effuse out of a container. An unknown gas takes 37 seconds to…

A: A sample of Xe takes 75 seconds to effuse out of a container. An unknown gas takes 37 seconds to…

Q: Rubber balloons filled with helium don't last as long as those filled with nitrogen or air because…

A: Helium (He) is a noble gas that is it consists of full valence electrons in its outermost shell (2…

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: Determine which gas will effuse faster under the same conditions of temperature and pressure. 1.CO2…

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Q: How much faster does nitrogen monoxide (NO) effuse in comparison to dinitrogen tetraoxide (N2O4)?

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Q: What volume of air at standard pressure (1.00atm)  gets packed into a 100.0 L SCUBA tank at the same…

A: Boyle’s law states that the volume of a fixed amount of gas is inversely proportional to the…

Q: A sample of Xe takes 75 seconds to effuse out of a container. An unknown gas takes 37 seconds to…

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Q: sample of N2 effuses in 100 s. How long will the same size sample of Cl2 take to effuse?

A: Grahams’s law of effusion states that rate of effusion of gas is inversely proportional to the…

Q: Determine which gas will effuse faster under the same conditions of temperature and pressure.…

A: Given: Molecular mass of CCl2F2:  120.91 g/mol Molecular mass of SO3:        80.06 g/mol Molecular…

Q: Argon gas is 10 times denser than helium gas at the same temperature and pressure. Which gas is…

A: According to Graham’s law, if a mixture contains two gases, then the rate of effusion will be…

Q: A sample of Ne gas is observed to effuse through a pourous barrier in 3.63 minutes. Under the same…

A: According to the Graham’s law, the rate of diffusion or effusion of a gas is inversely proportional…

Q: A sample of Br, (g) takes 38.0 min to effuse through a membrane. How long would it take the same…

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Q: A sample of N2(g) effuses through a tiny hole in 38 seconds. What must be the molar mass of a gas…

A: using Graham's Law of effusion :-rArB =MAMB     At constant pressure and temperature WhererA =rate…

Q: A 7.8-g piece of solid carbon dioxide is placed in a 4.0-L container that has an air pressure of…

A: According to ideal gas law PV = nRT where P = pressure in atm = P in torr / 760 = 740 / 760 = 0.974…

Q: Identify the element or molecule that has the  lowest effusion rate.     Cl2     Kr     H2…

A: Effusion is the process of escaping the gas molecule from tiny hole in container. According to…

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.