The molar mass of two equally sized samples of unknown gaseous compounds is shown in the table. Molar Mass Comparison Gas Molar Mass A 4.00 g/mol B 2.01 g/mol Which statement describes the density and effusion of both gases at STP?    Gas A has a higher density and effuses faster than Gas B.  Gas A has a higher density and effuses slower than Gas B.  Gas A has a lower density and effuses faster than Gas B. or  Gas A has a lower density and effuses slower than Gas B.

Q: Methane gas, CH4, effuses through a barrier at a rate of 0.862 mL/minute. If an unknown gas effuses…

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Q: The graph below shows the distribution of molecular speeds for argon and helium at the same…

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Q: A gas mixture contains HBr, NO, and C,H, at STP. If a tiny hole is made in the container, which gas…

A: The molar mass of the gases: NO2---->46gmol-1 C2H6--->30gmol-1 HBr----->80.91gmol-1 At STP…

Q: What is the total pressure in atmosphere of a gas mixture containing argon gas at 0.28 atm, helium…

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Q: Carbon Monoxide gas effuses from a flask in 3.8 minutes. Under the same condition, the quantity of…

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Q: The plot below shows the distribution of molecular velocities for two gases (A and B) at the same…

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Q: Which is a postulate of the kinetic molecular theory of gases? 1 Despite being very small, the…

A: The kinetic molecular theory of gas is a model explaining thermodynamic behaviour of gases.…

Q: If you pack a bag of potato chips for a snack on a plane ride, the bag appears to have inflated when…

A: Given :-  Initial pressure = 760 mm Hg  Initial volume = 340 mL  Final pressure = 670 mm Hg  To…

Q: A gas mixture is made by combining 7.2 g each of Ar, Ne, and an unknown diatomic gas. At STP, the…

A: The molar mass of Ar is 40 g/mol and that of Ne is 20 g/mol. Assume the molar mass of unknown to m…

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

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Q: Although the actual volume of an ideal gas will be zero at 0 K, why is the volume of air not zero at…

A: Theoretically, an ideal gas is expected to have zero volume at 0K. In actual observation, an…

Q: Calculate the weight of KClO3 that would be required to produce 49.52 liters of oxygen measured at…

A: Given reaction:-     2KClO3S →         2KClS+3O2g     For  O2⇒V=49.52 L…

Q: volume

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Q: A sample of an unknown gas effuses in 13.9 min. An equal volume of H2 in the same apparatus under…

A: The process in which a gas escape through a tiny hole from its container into the surrounding is…

Q: Unknown gas effuses at 0.66 rate of CO, then the rate of effusion of the unknown gas related to CF4…

A: Effusion is the process of diffusion of gas through small pore.

Q: A gas mixture is made by combining 7.5 g each of Ar, Ne, and an unknown diatomic gas. At STP, the…

A: Given,Mass of Ar, Ne and an unknown diatomic gas = 7.5 gMoles of Ar and Ne can be calculated as:

Q: 79. This graph shows the distribution of molecular velocities for two different molecules (A and B)…

A: From the graph, we can see that the relative number of molecules in A are greater than that in B.…

Q: A chemist notices that a gas (measured to have a molar mass of 18.02 g/mol) diffuses approximately…

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Q: Titan's lower atmosphere is 94.2% nitrogen and 5.7% methane. The other 0.1% is composed of a…

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Q: Under the same conditions of temperature and pressure, how many times faster will hydrogen effuse…

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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: Consider the effusion of a mixture of two gasses, A(g) and B(g), under identical conditions.  Given…

A: We have to compare rate of effusion of two gases.

Q: If a gas effuses 4.25 times faster than iodine gas (I2), what is its molar mass?

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Q: CH4 storage tank with a volume of 49.0 L. When empty, the tank has a mass of 55.85 kg, and when…

A: Given that,  Volume of tank V  = 49.0L Mass of CH4 filled in tank m  = 62.07 - 55.85…

Q: Carbon monoxide gas effuses from a container in 4.5 minutes. The same quantity of an unknown gas…

A: Given: Time for effusion of CO(tco)= 4.5 minutes Time for the effusion of unknown gas= 8.2 minutes…

Q: The plot below shows the distribution of molecular velocities for two gases (A and B) at the same…

A: This plot gives information about the fraction of molecules in having particular velocity range .…

Q: Consider the following five gases: Gas 1: H2Se(g) Gas 2: CH3NH2(g) Gas 3: C2H6(g) Gas 4: NO2F(g)…

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Q: Which of the following gases has the highest rate of effusion at STP? O nitrogen All of these…

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Q: Please identify the gas law described in each of the following statements with formulas. Thank you…

A: Identification of gas law:

Q: Gas 1: H2Se(g) Gas 2: CH3NH2(g) Gas 3: C2H6(g) Gas 4: NO2F(g) Gas 5: CH3PF2(g) Which gas would have…

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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 gas of unknown molecular mass was allowed to effusethrough a small opening under constant-pressure…

A: Since rate is inversely proportional to time. Also the rate is inversely proportional to root of…

Q: Calcium perbromate, Ca(BrO,), (m.w.= 327.9 g/mol) decomposes upon heating to release oxygen gas…

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Q: . A vessel with a small hole in its wall is filled with oxygento a pressure of 1.00 atm at 25°C. In…

A: Given, The rate of effusion of oxygen gas = 3.25 g/min The rate of effusion of unknown gas = 5.39…

Q: A gas mixture is made by combining 7.1 g each of Ar, Ne, and an unknown diatomic gas. At STP, the…

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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: Which of the following statements is true? a) At a given temperature, lighter gas particles travel…

A: Kinetic theory of gases: According to Kinetic theory of gases, Gas molecules have negligible volume…

Q: An unknown gaseous compound has an Effusion Rate of 5.33 torr/min compared to Argon's Effusion Rate…

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Q: A gas of unknown molar mass was allowed to effuse through a small opening under constant pressure…

A: Effusion is the process of movement of gaseous molecules through a small hole. The rate of effusion…

Q: A apecified quantity of an unknown gas has volume of 17.3 ml at 25 degrees celcius and 660 torr.…

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Q: Samples of Ar gas and Ne gas are both at 300 K. The average kinetic energy of the Ar is ________the…

A: Since you have asked multiple questions, we will solve the first three parts of the first question…

Q: A balloon is partly inflated with 4.50 liters of helium at sea level where the atmospheric pressure…

A: As the Atmospheric pressure decreases with increase in height, the internal pressure of the balloon…

Q: Consider the following five gases: • Gas 1: H2Seg) Gas 2: CH3NH2(8) • Gas 3: C2Hlg) • Gas 4: NO2F(g)…

A: Given gases are Gas 1: H2Se (g) Gas 2: CH3NH2 (g) Gas 3: C2H6 (g) Gas 4: NO2F (g) Gas 5: CH3PF2(g)

Q: Uranium hexafluoride, UF, is an important compound used in the enrichment of uranium by gaseous…

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Q: Which of the following best explains why the gas in balloon A effuses out of the balloon quicker?…

A: We have to predict correct option for effusion of gas in ballon A.

Q: A gas of unknown molecular mass was allowed to effuse through a small opening under…

A: Molar mass of O2 = 32 g/mole.

Q: A 795.0 mL volume of hydrogen gas is collected at 23 oC and 1055 torr.  What volume will it occupy…

A: Given: Volume of gas = 795.0 mL. Temperature = 23 oC And the pressure of gas = 1055 torr Since at…

Q: Consider the following five gases: · Gas 1: H2Se(g) · Gas 2: CH3NH2(g) · Gas 3: C2H6(g) · Gas 4:…

A: The process through which a gas can escape from a container through small hole is known as effusion

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.