Buy Kinetic Theory of Gases Assignment

Buy Kinetic Theory of Gases Assignment

386. What is the mean relative speed (v,,) of hydrogen molecules relative to

chlorine molecules at 298 K? The masses of the molecules are 3.35 X

10-*” kg for H» (m;) and 1.18 x 10°?” kg for Cl, (my).

387. What is the most probable speed (Ump) for oxygen gas at 298 K?

388. What is the mean speed (v,,,) for oxygen gas at 298 K?

389. What is the root-mean-square speed (v,,,,) for oxygen gas at 298 K?

390. The root-mean-square velocity (v) of oxygen gas at 298 K (7) is 482 msl.

Calculate the fraction (F) of oxygen molecules with velocities within

5 m s_! of this velocity. Assume that F is independent of v in this small

interval.

391. The root-mean-square velocity (v) of oxygen gas at 298 K and 1.00 atm

is 482 ms! and the mean free path (A) is 7.10 x 10-8 m. Calculate the

average time (Az) between collisions.

392. Determine the probability [ f(v,)] at 225 ms“! for the x (v,)

component of the velocity of an oxygen molecule at 298 K (7).

393. If the probability [ f(v,)] for oxygen gas is 1.03 x 10° s m™! at 298 K,

what fraction of the molecules has velocities (v) between 225.0 and

2955 ms 2

394. The thermal conductivity () for nitrogen at 298 K is 0.0261 J ms! K”,

and the mean speed (v,,,) at this temperature is 475 m s-‘. What is the

collision cross section (d) for nitrogen gas?

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McGraw-Hill’s 500 Physical Chemistry Questions

The viscosity (1) of xenon gas at 273 K is 2.10 x 10°? ke ra, and the

mean speed (v,,,) at this temperature is 210 m s-!. What is the collision

cross section (d@) for xenon?

The viscosity (nN) of xenon gas at 273 K (7) is 2.10 x lO ke ms:

What is the collision cross section (d) for xenon? The mass (7) of a xenon

atom is 2.18 x 107° kg.

At 298 K, the mean speed (v,,,) of a methane molecule is 628 m s“’, the

collision diameter (d) is 4.09 x 107!9 m, and the number density (f) is

2.43 x 107° m-3. What is the collision frequency (z)?

At 298 K, the mean speed (v,,,) of a methane molecule is 628 m sg !, the

collision diameter (d) is 4.09 x 107!° m, and the number density (P) is

2.43 x 102° m™>. What is the collision density (Z)?

The collision diameter (d@) of methane is 4.09 x 107!° m, and the number

density (Pp) is 2.43 x 107? m™ at 1.00 bar and 298 K. What is the mean

free path (A) in meters at 1.00 bar?

Assuming methane molecules are hard spheres with a molecular diameter

(d) of 4.09 x 107!° m, calculate the viscosity (Nj) at 298 K (T) and 1.00

bar. The mass (7m) of a methane molecule is 2.66 x 10~*° kg.

The collision diameter of methane is 4.09 x 107’° m. What multiple of the

collision diameter is the separation between the molecules at 1.00 atm

and 273 K? Assume that the separation is equal to the edge of a cube

containing one molecule.

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The density of intergalactic space is estimated to be as low as one hydrogen

atom per cubic meter at 2.7 K (7). What is the pressure (/) in pascals?

The density of intergalactic space is estimated to be as low as one hydrogen

atom per cubic meter at 2.7 K (7), What is the mean speed (v,,,) of the

hydrogen atom? ms

The density of intergalactic space is estimated to be as low as one hydrogen atom per cubic meter at 2.7 K (7). Under these conditions, the mean speed (v,,,) of a hydrogen atom is 2 x 107 m s-!. What is the collision frequency (z)? Assume the collision diameter (d) of a hydrogen atom is

1X 1078) in.

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