The density of a gaseous compound was found to be 1.23 g/L at 330 K and 150 Torr. What is the molar mass of the compound?

Q: An empty flask has a mass of 47.392 g and 47.816 g when filled with acetone vapor at 100.oC and 745…

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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 551-mL sample of O2 was collected over water at 21 oC when the barometric pressure was 1142 torr.…

A: After applying the ideal gas equation , we can solvethe problem as:PV=nRT

Q: A sample of methane gas (CH4) has a volume of 64 L at 835 Torr and 75°C. What is the volume of this…

A: An ideal gas is a hypothetical gas that is composed of many randomly moving point particles which…

Q: How many moles of carbon dioxide occupy a volume of 17.2 L at STP?

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Q: A mixture of N2, O2, and CO2 has a total pressure of 749 torr. In this mixture the partial pressure…

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Q: Which of the following is NOT an assumption made by kinetic molecular theory? 1. Gas particles are…

A: Kinetic molecular theory of gases describes the thermodynamic behavior of ideal gases. That means it…

Q: To expand a sample of O2(g) under 5.6 atm from 95 mL to 360 mL at the same temperature requires…

A: Boyles' Law gives the relationship between the Pressure and Volume of same amount of gas at constant…

Q: a sample of nitrogen occupies 5.50 liters under a pressure of 900 torr at 25 degree celsius. At what…

A: Given  Initial Volume ( V1 ) = 5.50 Liter  Initial Pressure ( P1 ) = 900 torr Initial Temperature (…

Q: compound has the empirical formula CHI . A 256-mL flask, at 373 K and 750. torr, contains 2.31 g of…

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Q: What is the density of methane gas, CH4 at STP?

A: STP means standard temperature and pressure  Temperature is 0°C or 273 K  Pressure is 1 atm

Q: A gas occupies 7.50 L at 25 °C and 805 torr. What volume would this gas occupy at STP?     7.22 L…

A: At STP, temperature, T2 = 273.15 K Pressure, P2 = 760 torr Volume, V2 = V Pressure P1 = 805 torr…

Q: A sample of a gas occupies 1.80 L at 10. oC and 150. torr. What volume will it occupy at 70. oC and…

A: Given ⇒   V1 = 1.80L , T1 = 10°C = 10+273°K = 283°K    P1 = 150 torrV2 = ?    T2 = 70°C = 70+273°K =…

Q: Which postulate of the kinetic molecular theory breaks down under conditions of low temperature?…

A: Kinetic theory of gases is a model that assumes the gases are spherical, rigid and that the…

Q: Which postulate of the kinetic molecular theory breaks down under conditions of high pressure?…

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Q: mixture contains H2 at 325 torr pressure, N2 at 475 torr pressure, and O2 at 650. torr pressure.…

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Q: An 11.5-mL sample of liquid butane (density = 0.573 g/mL) is evaporated in an otherwise empty…

A: The expression for ideal gas equation is as follows,                                           P V=n…

Q: 1. A gas mixture contains each of the following gases at the indicated partial pressures: N2, 226…

A: Given :-  PN2 = 226 torr  PO2 = 122 torr  PHe = 107 torr  Volume = 1.50 L  Temperature = 25°C  To…

Q: A gas sample occupies 350.0 mL at 24 degree C and 755 torr. What is its volume in mL at STP

A: Initial volume of the gas (V1)  350.0 ml = 0.350 L  Initial temperature (T1) = 24°C = 24 + 273.15 =…

Q: A sample of CH4 gas was collected over water at 29 ºC and 687 mm Hg. What is the partial pressure of…

A: Given that:  Pressure of CH4 collected over water = 687 mmHg  T = 29°C Vapour pressure of water at…

Q: At a constant temperature, a sample of helium at 760 torr in a closed container was compressed from…

A: Given, At a constant temperature, a sample of helium at 760 torr in aclosed container was compressed…

Q: A 300.-mL sample of hydrogen, H2, was collected over water at 21oC on a day when the barometric…

A: Pressure of Gas + Water = 748 torr Vapor pressure of water = 19 torr Pressure of H2 Gas = 748 -19 =…

Q: . Astudent doing this experiment collecte the following data: temperature of boiling water 99.7…

A: Given: Temprature of boiling water = 99.70C (T1) volume of water pulled into flask = 30.0 mL…

Q: Calculate the volume occupied by 67.0 grams of SO2 at 115 oC and 1140 torr.     7.62 L     22.2…

A: Given data is as follows: The mass of SO2 = 67.0 grams Temperature = 115 °C=115+273=388 K Pressure…

Q: A gas mixture contains each of the following gases at the indicated partial pressure.   N2 217…

A: Given :  Partial pressure of N2 = 217 torr  Partial pressure of O2 = 101 torr  Partial pressure of…

Q: A sample of gas was collected over H2O at 27°C and 600 torr barometric pressure; volume 260 mL. (The…

A: Given, barometric pressure = 600 torr  Volume  = 260 ml = 0.26 L  Temperature= 27°c = (273+27)=300 K…

Q: what is the molar mass of the acetone?

A: Given: Mass of an empty flask= 47.292g Mass of flask when filled with acetone= 47.816g Pressure= 745…

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: How much faster does oxygen escape through a porous container than sulfur dioxide under similar…

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Q: Consider three 1-L flasks each containing a gas at STP. Flask A contains NH3 gas, flask B contains…

A: The ideal gas equation is as follows,                                                    P V = n R T…

Q: The density of liquid octane, C8H18, is 0.7025 g/mL. If 1.00 mL of liquid octane is vaporized at…

A: Data given: Density of octane = 0.7025 g/mL Volume of octane = 1.00 mL Temperature, T = 100 °C =…

Q: A mixture of N2, O2, and CO2 has a total pressure of 749 torr. In this mixture the partial pressure…

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Q: A mixture of the gases N2, O2, and He has a total pressure of 760 mm Hg. If the partial pressure of…

A: Dalton’s law of partial pressure states that the sum of partial pressures of all gases present in…

Q: A sample of nitrogen gas, N2, occupies 781 ml at 59.4°C under a pressure of 892 torr.  What volume…

A: According to ideal gas law, PV = nRT where P = pressure V = volume n = moles R = gas constant =…

Q: At what temperature will 5.00 g of Cl2 exert a pressure of 900. torr at a volume of 750.mL?

A: Ideal gas equation is  PV = nRT  PV = (w/M)RT Here , P = pressure  V = volume  w = mass of the gas M…

Q: A 10 L container holds a mixture of 5 gases at 0°C. The composition of the mixture is given below.…

A: Given data,Volume=10LTemperature=0oC=273K

Q: 3. Which assumptions of the kinetic molecular theory for gases are modified to explain the shape and…

A: KINETIC MOLECULAR THEORY: The theory which was states the particle nature of gases and their…

Q: Acetylene, C2H2, is produced in the laboratory when calcium carbide, CaC2 reactswith water according…

A: The given reaction is : CaC2 + 2H2O -----------------> C2H2 +Ca(OH)2 The total pressure is the…

Q: Consider the three flasks in the diagram below. What is the partial pressure of each gas and the…

A: Given :  For He gas :  Volume = 1.0 L  Pressure = 200 torr  For Ne gas :  Volume = 1.0 L  Pressure =…

Q: Which of the following statements is TRUE about the kinetic molecular theory? O A single particle…

A: The important postulates of Kinetic molecular theory are -  1. All gases are made up of a very large…

Q: The partial pressures of a mixture of gases are as follows: oxygen, 210 mm Hg; nitrogen, 560 mm Hg;…

A: Given, a gas mixture has.total pressure of the gas mixture =790 mmHg and partial pressures of…

Q: A 500 mL sample of oxygen was collected by displacement of water at 24 degrees celsisus under…

A: Given data Volume of gas : V=500 mL = 0.500 L Temperature : T=24°C = ( 24+273.15 ) K=297.15 K Total…

Q: CHI A compound has the empirical formula . A 256-mL flask, at 373 K and 750. torr, contains 2.31 g…

A: We have to calculate the molecular formula .

Q: The partial pressures of a mixture of gases were as follows: oxygen, 210 mm Hg; nitrogen, 560 mm Hg;…

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Q: Mass of flask +cap= 96.421g temp. of boiling water= 100 C Mass of flask+ cap+ condensed vapor=…

A: 1) Calculation of the average mass of the flask + cap + vapor: Average mass=97.005 g+96.957 g+96.984…

Q: Assume that the pressures in container A and B are the same. Container Container A Volume 2.71 L ??…

A: The volume of the container B is 1.093 L

Q: Calculate the root mean square (rms) average speed of the atoms in a sampleof xenon gas at 0.12 atm…

A: The formula for root mean square average speed is  where R = gas constant = 8.314 J/K.mol T =…

Q: A 91.4 L glass bulb has a total pressure of 760 torr at 0 C and contains three different gases,…

A: Ideal gas equation: The temperature, pressure, volume, and mole of the gas are related to the ideal…

Q: Calculate the root-mean-square (rms) speed (in m/s) of propane (C3H8) gas molecules at a temperature…

A: We have to calculate the root-mean-square (rms) speed (in m/s) of propane (C3H8) gas molecules

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.