Which one of the following gases would have the highest average molecular speed at 25 °C?    CH4    O2    SF6    N2    CO2

Q: The composition of the atmosphere is relatively constant, with the exception of humidity; the amount…

A: (a) Dalton's law states that the total pressure of a mixture of gaseous mixture is the sum of…

Q: The Haber process is used to synthesize ammonia (NH3) on a large scale by the reaction of nitrogen…

A:

Q: Which of the following gases would behave most like an ideal gas? O CH4 O C2H6 O C3H8 O C4H10

A: The ideal behavior of individual gases is dependent on the magnitude of intermolecular forces of…

Q: Which of the three gases will have the highest root-mean-square speed? UF6 F2 NF3 The three gases…

A: 1. Highest root-mean-sqaure speed: Therefore, the highest root-mean-sqaure speed is F2 gas. Correct…

Q: 1. A sample of air was compressed to a volume of 24.4 L. The temperature was 298 K and the pressure…

A:

Q: Kinetic molecular theory Consider two 1-L samples of gas: one is O2 and the other is CO2. Both are…

A: The above question can be solved as

Q: A mixture of four gases is placed in the same container, maintained at a set temperature and…

A: The root mean square formula is, Vrms = √3RT ÷ √M where, R = gas constant, T = temperature and M =…

Q: Determine the mass, in kg, of HgO that must decompose to form 58.4 L O2 gas at STP.    2HgO(s) →…

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Q: An unknown gas takes 4.577 times longer than helium to diffuse into a given volume. What is a…

A: Answer: Rate of diffusion of a gas is equal to the ratio of the volume occupied by it in the given…

Q: Which gas has the slowest average molecular speed at 25 °C? Molecular Gas mass (g/mol) Ne 20.2 Ar…

A: Average  molecular  speed  = 8RTπM  where M is molar mass Average  molecular  speed  inversely…

Q: An unknown gas at 25.1 ∘C25.1 ∘C and 1.10 atm1.10 atm has a molar mass of 44.10 g/mol.44.10 g/mol.…

A:

Q: What volume of gas is produced when 16.0 g of lithium reacts with 30.0 mL of water? Assume that the…

A: Given, Mass of Li  = 16.0 g  Volume of water = 30.0 mL  Density of water = 1.00 g/mL  Pressure =…

Q: You start with an equimolar mixture of the gases SO₂ and O₂ in a container. The SO₂ and O₂ react to…

A: Ideal gas equation is given by PV=nRT where P is the pressure, V is the volume, n is the number of…

Q: A 1.00 L flask is filled with 2.00 mol Ar, 2.00 mol H2 and 4.00 mol Kr. Which of the following…

A: Given data, Volume of flask = 1.0L Moles of H2 = 2.00 moles Moles of Ar = 2.00 moles Moles of Kr =…

Q: P4(g) + Br2(g) --> PBr3(g) What volume of phosphorus tribromide will be produced at 22 oC and…

A: Molar mass of P4 = 124 g/mol Hence moles of phosphorus reacting = mass / molar mass = 48.5 / 124 =…

Q: What is the mole fraction of argon (Ar) in this balloon? N₂. O 39.95 O 0.25 02 0.33 8 .CO₂

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Q: Three 1.00-L flasks at 25°C and 725 torr contain the gases CH4 (flask A), CO2 (flask B), and C2H6…

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Q: At 25°C, the atoms of helium move approximately six times faster than the molecules of an unknown…

A: Given : Speed of helium gas us 6 times faster than the speed of unknown gas. Speed of any gas is…

Q: A sample of N2O3(g) has a pressure of 0.024 atm. The temperature (in K) is then doubled and the N2O3…

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Q: In the fermentation of glucose (wine making), 760 mLmL of CO2CO2 gas was produced at 31 ∘C∘C and…

A: Given :  initial pressure = 1.20 atm  initial volume = 760 mL  initial temperature = 31°C  final…

Q: The hydrogen gas formed in a chemical reaction is collected over water at 30.0 ∘C∘C at a total…

A: Total pressure = 734 mmHg  partial pressure of water at 30C = 31.50 mmHg  Dalton’s law of partial…

Q: What is the ratio of the average kinetic energy of a SO2 molecule to that of an O2 molecule in a…

A: …

Q: Which of the following gases would have the lowest average velocity at 400 K? O CO₂ O SO₂ O Cl₂ O Xe…

A:

Q: Calculate the average kinetic energies of H2(g) molecules at 5 °C and at 150 °C.

A: The answer to the following question is-

Q: A 3.00-LL flask is filled with gaseous ammonia, NH3NH3. The gas pressure measured at 25.0 ∘C∘C is…

A:

Q: You start with an equimolar mixture of the gases SO2 and O2 in a container. The SO2 and O2 react to…

A: Given:         Temperature=25°CPressure=1.85 atmConversion:From Celsius to…

Q: The temperature in the stratosphere is −21 ° C. Calculate the root-mean-square speeds of N2, O2,…

A: Given:Temperature. T=-21∘C = 252Kalso, we know that,Molar mass of N2= 28g =28 x 10-3KgMolar mass of…

Q: In our campus, there are approximately 30.000 students use 2.5 x 109 kJ of energy per day. Suppose…

A: Giveln Pressure = 9186 torr = 9186/760 atm 5.059 g CO2(g), 3.106 g H2O(l) Volume = 580ml = 0.58L…

Q: Suppose 0.500 moles of tungsten hexafluoride gas reacts completely with 1.500 moles of hydrogen gas…

A: The ideal gas equation is as shown below, PV = nRT  where P = pressure  V = volume of chamber n =…

Q: Determine the mass, in kg, of HgO that must decompose to form 78.4 L O2 gas at STP.    2HgO(s) →…

A: To solve this problem we have to calculate the mass of HgO .

Q: You are given two closed 1.0 L flasks (A and B) connected by a stopcock, both at room temperature…

A: Volume of both flask = 1.0 LPressure of flask A = 0.80 atmPressure of flask B = 1.5 atm

Q: The partial pressures of CH 4, N 2, and O 2 in a sample of gas were found to be 135 mmHg, 508 mmHg,…

A: Given : Partial pressure of CH4 = 135 mm Hg Partial pressure of N2 = 508 mm Hg And partial pressure…

Q: Ammonia gas has a molar mass of approximately 17 grams per mole. At 290K and 1.2 atm, a sample of…

A:

Q: A gas made up of homonuclear diatomic molecules escapes through a pinhole 0.859 times as fast as N₂…

A: Given,A gas made up of homo nuclear diatomic molecules escapes through a pinhole 0.859 times as fast…

Q: Consider two gases, A and B, both at the same temperature. The molar mass of A is MA, the molar mass…

A: The average speed of gases: The speed of a gas particle depends on the temperature of the gas and…

Q: Which of the following gases has the highest average speed at 400K?     H2     He     N2…

A: Average speed is defined as " the ratio of sum of the velocities of all gas molecules to the total…

Q: A sample of nitrogen gas has a volume of 167.0 mL at STP. What volume (in mL) does the gas occupy if…

A: 1) Given that: Volume of nitrogen (V1) = 167.0 mL = 0.167 L at STP that is Temperature (T1) = 273 K…

Q: For air at 25 °C (77 °F) with 100% humidity, what is the partial pressure of oxygen (PO2)?

A: Given Air with 100% humidity at 25 °C.

Q: 5. You are given 1.56 g of a mixture of KClO3 and KCl. When the mixture is heated the oxygen gas…

A: In the given question we have to calculate the percentage of KClO3 in the mixture,  first of all, we…

Q: 7. A sample of natural gas at 750 mm Hg contains 85% methane, 10% ethane, and 5% propane. What are…

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Q: Which gas has molecules with the greatest most probable speed at 25°C? O Kr O CH4 O N2 O co2 O Ar

A: Most probable speed (Cmp)

Q: A gas made up of homonuclear diatomic molecules escapes through a pinhole 1.19 times as fast as Ar…

A:

Q: Dry ice is solid carbon dioxide. A 1.47−g sample of dry ice is placed in an evacuated 4.37−L vessel…

A: in this question given data,  dry ice means CO2, 44g/mole  Volume = 4.37  1.47g of dry ice  27∘C…

Q: Suppose a sample of refrigerant gas consisting of a simple mixture of the gases C2HF5 and CH2F2 has…

A: Given: Density of mixture = 1.92 g/L. Pressure of mixture = 0.625 atm. Temperature = 31 oC And the…

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.