3. Answer the following questions at 75 °C and 1 mole assuming all possible energy states are populated (i) (ii) (iii) the mean speeds of He atoms the mean speeds of Hg atoms ratio of the mean speeds of He and Hg atoms

Q: Calculate the most probable speed, RMS speed and mean speed of helium at 27oC. Given that R= 8.3141…

A:

Q: Calculate the root mean square velocity, in m/s, of Kr at 273.0 K. Assume ideal gas behavior. Report…

A: Since the gas particles are moving towards all direction with same probability, average velocity of…

Q: 3) Using the Beattie-Bridgeman equation explicit in volume, calculate ui grams per cubic centimeters…

A: Given data,Temperature=0oC273.15KPressure=100atm

Q: what is the density of oxygen gas at 25 degrees C and 120 kPa?

A: The density of oxygen gas at 25 degrees C and 120 kPa is to be determined.

Q: Calculate the root mean square velocity of chlorine gas at 40 0C.

A: Answer: Root mean square velocity of Cl2 gas = 331.83 m s-1

Q: A flask containing neon g is connected to an open- ended mercury manome- The open end is exposer the…

A: A manometer is a device that we use to measure the pressure of the pipelines (cab be of gas, water,…

Q: It turns out that the van der Waals constant b equals fourtimes the total volume actually occupied…

A: (a) The van der Waals constant b of argon gas is four times of the actual volume occupied by argon…

Q: What is the density of oxygen gas at 25 degree C and 120 kPa?

A:

Q: This reaction may be used to prepare pure nitrogen.  How many grams (g) of ammonium nitrite must…

A: We will calculate the number of moles of N2 , then using stoichiometric calculations find mass of…

Q: Calculate the density of nitrogen dioxide gas at 765 Torr and 20oC.

A: Given: The pressure of N2, (P) = 765 Torr = 1.006 atm. The temperature of N2, (T) = 20oC = (273+20)…

Q: A gas made up of homonuclear diatomic molecules escapes through a pinhole 0.749 times as fast as Ar…

A:

Q: Calculate the molecular weight (mass) of a gaseous element if 0.480 g of the gas occupies 367 mL at…

A: Given,  Mass of the element = 0.480 g  Volume, V = 367 mL = (367/1000) = 0.367 L  Pressure, P = 365…

Q: lowing gases in order of increasing average molecular speed a 6, Xe, CCl₂ F2. < < <

A:

Q: The density of a gaseous compound was found to be 1.23 kg/m³ at 330K and 20kPa. What is the molar…

A: Objective : To determine molar mass of compound

Q: Find the root-mean-square speed, average speed, and most probable speed of chlorine gas at 225oC?

A: The formulas for root-mean-square speed(Vrms) , average speed(Vavg) , and most probable speed(Vmps)…

Q: For the following oxygen, nitrogen, and helium mixture, determine the partial pressure of helium if…

A: Relation between partial pressure and mol fraction- According to Dalton’s law, partial pressure of…

Q: What temperature (in kelvin) would 9.92 mols of hydrogen be if held in a 130 L container at 82.12…

A: Given that,  Moles of hydrogen gas in container n =  9.92 mol Pressure of Hydrogen gas P = 82.12 kPa…

Q: What is the ratio of rms (root-mean-square) molecular speed of H2 gas (2 g/mol) at 0°C to rms…

A:

Q: 26.57 L of ethane at 64 degrees C and 657.5 mmHg reacts with 98.76 L of oxygen gas at 59.7 degrees C…

A: Given: Volume of ethane = 26.57 L Temperature of ethane = 64 oC = 273.15 + 64 = 337.15 K…

Q: Determine the ratio of the mean speeds for H2 molecules to Ar atoms at 20°C.

A: The two gases are given H2 and Ar. Temperature of each gas is T = 20°C

Q: What is the root-mean-square velocity of O2 gas molecules in the stratosphere where the temperature…

A: Given information,       O2 gas molecules in the stratosphere      Temperature is 260 K

Q: If 150g dimethylhydrazine reacts with excess dinitrogen tetroxide and the product gases are…

A: Chemical formula of dimethylhydrazine = CH32 N2H2Dinitrogen tetraxide = N2O4

Q: Calculate the root-mean-square average speed of a nitrogen molecule in air at 21 C.

A:

Q: Calculate the root mean square velocity of Rn at 273.0 K. Assume ideal gas behavior.

A:

Q: Determine the pressure (in atm) exerted by a simple barometer that has a height of mercury equal to…

A: Given that, Height of mercury in a simple barometer = 617 cm Hg

Q: 7. A sample of 1.00 mole of Xe gas occupies 25.00dm at 200.00K. If treated as a perfect gas, the…

A: For an ideal gas z = 1 (as no intermolecular attractive or repulsive interactions exist). For a real…

Q: A) A vessel at STP contains 28.5 kg of N2 (molecular mass = 28u). What is the mean free path of the…

A:

Q: What is the mean free path A of an oxygen molecule O, at 300 K and 4 atm of pressure if the radius…

A: Given : Temperature = 300 K Pressure = 4 atm = 4 X 1.01325 X 105 = 4.053 X 105 Pa…

Q: < 2:01 Question 10 of 21 il ☎ Sub In the van der Waals equation, for what aspect does the factor 'b'…

A: Vander waal equation is a modified form of gas equation which describes the behavior of real gas.

Q: Calculate the density of NO2 gas at 0.970 atm and 35C.

A: Using the ideal gas equation, the density of given NO2 is determined.

Q: determine the root mean squared gas velocity in m/s of a gas at 98.33 celsius with a molecular…

A: Root mean squared velocity can be determined by following formula:  Vrms = (3RT/M)1/2 Where R =…

Q: An 850.0 ml container is filled with a mixture of oxygen and nitrogen to a pressure of 120 kPa at 28…

A:

Q: Determine the root mean square velocity of He atoms at 25.0°C in /s.

A: Root-mean-square speed: The gas particles are in contentious motion. The speed of a gas particle…

Q: Aluminium reacts with chlorine gas to form aluminium chloride, what volume of chlorine gas at 325k…

A: P= 2atm Weight of aluminium=7.85g Temperature=325k

Q: What volume of oxygen gas is produced when 18.8 g of mercury(II) oxide reacts completely according…

A: For the calculation of the volume of the product we use the following steps:Balance the given…

Q: Show that for a gas of rigid spherical molecules, b in the van der Waals equation is four times the…

A:

Q: Calculate the root mean square velocity, in m/s, of Ne at 273.0 K. Assume ideal gas behavior.

A: Physical chemistry.

Q: 1. At 137°C and a pressure of 315.04 kPa, a 160.96g sample of an unknown noble gas occupies 13.26L…

A: Identify the Nobel gas present in the cylinder.

Q: The density of NO2 in a 4.50 L tank at 760 mmHg and 25 C is

A: Please find the attachment

Q: Calculate the root mean squared velocity of Helium at 75 degrees C, in meters per second.

A: Given: Temperature = 75 oC And the gas is helium.

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.