The best laboratory vacuum pump can generate a vacuum of about 1 nTorr. At 25oC and assuming air consists of N2 molecules with a collision diameter of 395 pm, calculate (a) the mean velocity of the molecules; (b) the mean free path, and

Q: The maximum in the Maxwell–Boltzmann distribution occurs when df(v)/dv = 0. Find, by…

A:

Q: Explain and answer  The best laboratory vacuum pump can generate a vacuum of about 1 nTorr. At 25°…

A: Given that, The pressure is P = 1 nTorr = 1×10-9 torr = 10-9×133.322 N/m2 = 1.33×10-7 N/m2, The…

Q: P1C.13 A scientist proposed the following equation of state: RT В C Vm V? V3 m m Show that the…

A:

Q: The molar volume of oxygen, O2, is 3.90 dm3 mol-1 at 10.0 bar and 200 °c. Assuming that the…

A:

Q: In effusion, how does the frequency of collisions with the opening scale with molecular mass?

A: We will explain In effusion, how does the frequency of collisions with the opening scale with…

Q: Imagine there is a bulla, a large blister or sack of gas, in the lungs of a person who is climbing…

A: Introduction :  According to Boyle's law the absolute pressure exerted by given mass of ideal gas is…

Q: true or false At 298K, N2 molecules have a mean speed of 475 m/s. As a consequence, the probability…

A: Root mean square velocity is occupied by least number or molecules so chances are least.

Q: A gas has a molar volume of 1.5L\mole and a collision diameter of 396 picometers. Its mean-free path…

A:

Q: 13.1 liter steel tank contains 0.4 kg of Argon gas. If the maximum temperature that this tank can…

A:

Q: Calculate the partial pressure in [bar] of N; in air consisting of N3, Oz, and Ar assuming that the…

A: Answer: This question is based on the density form of ideal gas equation which is shown below:…

Q: The molar volume of oxygen, O2, is 3.90 dm3 mol-1 at 10.0 bar and 200 °c. Assuming that the…

A: Various laws explain the properties of gaseous phase. Boyle’ law, Charles’s law, Avogadro’s law,…

Q: At 10.0C and 102.5 kPa, the density of dry air is 1.26 gL. What is the average "molar mass" of dry…

A: dear student, since you have asked multiple questions but according to guidelines we will solve 1st…

Q: At a height of 15 kilometers, the temperature is 217K and the pressure is 12.1 kPa. What is the mean…

A:

Q: Did I do this one correctly? A gaseous sample of molecules, with a molar mass of 87.9 g/mol, is…

A: A numerical problem based on chemical kinetics that is to be accomplished.

Q: Calculate the mean speed of atoms of argon in a gas at 25oC if the mean speed of neon under these…

A:

Q: Determine the mean free path of oxygen molecules in air at 25.0 ºC, given that the collision…

A:

Q: What is the pressure, in kilopascals, on the body of a diver if she is 31.0 m below the surface of…

A: Since we know that the pressure at a depth of h inside water is given by  P = density of water X g X…

Q: For an ideal gas obeying the ideal gas law, P = nRT/V , where R is the gas constant. Write the…

A: Given details, P = nRTV R is the gas constant. n is constant, Therefore, the pressure of the given…

Q: If 400cm^3 of Q was collected at 25°c and 1.20 x10^5, calculate the volume it would occupy at s.t.p…

A: Volume = 400 cm3 = 0.4 L  Pressure = 1.20 × 105 Nm2  = 1.18 atm Temperature = 25°C = 25 + 273 = 298…

Q: Use the Maxwell-Boltzmann distribution of speeds to estimate the fraction of CH4 molecules at 298.15…

A:

Q: A specially constructed velocity-selector accepts a beam of molecules from an oven at a temperature…

A:

Q: describe briefly the effect of varying the box length (or volume) on the number of particle…

A:

Q: The collision diameter of N2 is 3.74 x 10-10 m at 298.15 K and 101.325 kPa. Its average speed is…

A:

Q: The mass density of water vapour at 327.6 atm and 776.4 K is 133.2 kg m−3. Given that for water a =…

A: a.

Q: What would be the height of the column in a barometerif the external pressure was 101 kPa and…

A: The external pressure is 101 kPa. The density of water is 1.00 g/cm3. The conversion of gram (g)…

Q: The molecular diameter of helium, He, is 0.225 nm. At 0 °C and kPa, calculate the (iv) mean free…

A:

Q: (ii) Calculate the fraction of oxygen molecules moving with a speed between 700 ms" and 710 ms' at…

A: Hello. Since your question has multiple parts, we will solve the first question for you. If you want…

Q: -42 cm/mol for CH and B = -732 8.6 At 25°C, B cm/mol for n-C,H0. For a mixture of 0.0300 mol of CH,…

A: given data are mixture of 0.0300 mol of CH4 and 0.0700 mol of n-C4H10 so n= no. of moles =…

Q: Estimate the percentage difference between the van der Waals and perfect gas calculations for carbon…

A: Given data: carbon dioxide: a=3.610 atmdmmol, Temperature in Kelvin (T) = 25oC  Universal gas…

Q: P1A.5 Deduce the relation between the pressure and mass density, ρ, of a perfect gas of molar mass…

A:

Q: Molecular oxygen, O2, has a collision diameter of 3.57 x 10-10 m. Calculate the mean free path, 2,…

A:

Q: Calculate the fraction of N2 molecules with speed at 550K in the range of 300 m/s to 320 m/s.

A:

Q: On the basis of Eq. 1.80 with ß = 1/k,T, derive an expression for the fraction of molecules in a…

A: Given that, β=1kBTdPx=Be-mux2β2dux

Q: The best laboratory vacuum pump can generate a vacuum of about 1 nTorr. At 25°C and assuming that…

A: Given temperature. T = 25 oC + 273.15  = 298.15 K  Molar mass of N2 molecule, M = 28.013 g.mol-1 *…

Q: Ultra-high vacuum chambers contain a background gas, such as hydrogen, at a pressure of 1 x 10-7 Pa.…

A: Given: Pressure (P) = 1×10-7 Pa Temperature (T) = 200 K Diameter (d) = 289 pm (1 pm = 10-12 m) So, d…

Q: Given that the mass density of air at 0.987 bar and 27 °C is 1.146 kg m−3, calculate the mole…

A: Ideal gas assumption is:

Q: Calculate the number of collisions per m3 and the mean free path for air molecules 1.2 g/L. (a) at…

A: FORMULA FOR CALCULATING COLLISION NUMBER Z=2πd2<c>ρd=collision diameter<c>=average…

Q: True or false? At 298K, N2 molecules have a mean speed of 475 m/s. As a consequence, the…

A: Mean speed is the average speed of all the molecules with different velocities.  Some molecules may…

Q: At what pressure does the mean free path of argon at 25°C become comparable to the size of a 1 dm3…

A: Given; Temperature (T) = 25°C = 298 K  Volume of vessel = 1 dm3  Volume of sphere (V) = (4/3)×π×r3…

Q: The overhead ozone at a given location is brought to the surface into a square with 1.00 m2 area, at…

A:

Q: A cylinder of nitrogen and a cylinder of neon are at the same temperature and pressure. The mean…

A: Here we are required to the mean free path of a neon atom.

Q: Assume that air consists of N2 molecules with a collision diameter of 395 pm. Calculate (i) the mean…

A: a) Mean speed of molecule =  R = gas constant = 8.314 J/K.mol T = temperature = 25 oC = 273+25 =…

Q: Determine the absolute pressure in torr on an object submerged 1000m below the surface of the sea.…

A:

Q: At what pressure does the mean free path of argon at 20 °C become comparable to the diameter of a…

A: T = 20 °C = 293 K d = 100 cm3 σ = 0.36 nm2 = 0.36 x 10-9 m2 λ = 100 cm = 1 m Using Formula  λ=KT2σP1…

Q: For a diatomic carbon dioxide gas (CO2 molar mass is 44.0g/mol) at T=300K, calculate (a) the most…

A: Velocity order will be  Vrms> Vav > Vmp