Question

what is the free mean path of methane molecule at 298 K and 7×10^-4 torr? give answer in meters

Answer #1

Mean free path is related to temperature and pressure by:

d = average diameter of a molecule = 0.3 nm

P = 7 x 10^{-4} = 0.0933 Pa

therefore, .

this is the mean free path at the given temperature and pressure.

7. A nitrogen molecule has a diameter of about 0.29 nm. The mean
free path of a nitrogen molecule in a tank of dry nitrogen at room
temperature (293 K) and standard pressure (1 atm) is about 0.10 µm.
A tank containing nitrogen at standard temperature (273 K) and
pressure has volume V. If the tank is compressed by means of a
piston to 20% of its original volume, what is the mean free path
for a nitrogen molecule under...

3. Derive the mean free time and mean free path of a gas
molecule. Calculate both these parameters for a nitrogen molecule
at T = 27 degree Celsius'
*Please show formulas, steps, descriptions.

The mean free path is the average distance travelled by a
molecule, atom, particle, etc. between a collision with another
particle or molecule. Calculate the mean free path, ?, of air at
room temperature, T = 71.2

An oxygen molecule travels 0.7085 m in 1.47 x 10−3 s at 298 K.
What is its velocity in m/sto the correct number of significant
figures? could someone give me a detailed walk through of this
problem, studying for a test and unsure how to complete this.

(Ideal, reversible, adiabatic flow compressor) Methane is
compressed from 298 K and 1 atm to 4 atm. What is the work required
per mole? And, what is the final temperature?

The solubility of CO2 in a salt water lake at 298 K and 750 torr
pressure was found to be 1.0 x 10-5 moles CO2/liter of aqueous
solution. The Henry’s Law constant in this case is 3.0 x 10-2
mol/L.atm. Please find the partial pressure of CO2 (g) (PCO2, in
atm) in the air above the lake (2) Please use your answer to
determine the percentage of CO2 in the atmosphere (2) Given the
percentage of CO2 in the atmosphere...

A vacuum chamber has a base pressure of 10-6 Torr. Assuming that
this is dominated by N2 gas where the diameter is 0.44 nm and
molecular mass of 28, (a) What is the gas density, the mean free
path, the molecule flux at 300 K? (b) What is the partial pressure
of O2 that produce a ratio 10-9 of the N2 flux to O2 flux at the
same temperature? Considering them have identical diameters

Diamond
a. At 298 K, what is the Gibbs free energy change G for the
following reaction? Cgraphite -> Cdiamond
b. Is the diamond thermodynamically stable relative to graphite
at 298 K?
c. What is the change of Gibbs free energy of diamond when it is
compressed isothermally from 1 atm to 1000 atm at 298 K?
d. Assuming that graphite and diamond are incompressible,
calculate the pressure at which the two exist in equilibrium at 298
K.
e....

Find the mean free path of nitrogen gas at pressure p = 2.5atm
and temperature T = 56.50F. The diameter of a nitrogen molecule is
d = 0.3 nm. What is the average rate of collisions?

Given a cubical room 10 ft on a side,
What is the mean free path of a sound ray in the room?
How many reflections per second does an average ray make with
the walls?
If the loss in level per reflection is 1.5 dB, what are the
reverberation time for the room and the average absorptivity of the
walls?

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 23 minutes ago

asked 40 minutes ago

asked 45 minutes ago

asked 49 minutes ago

asked 58 minutes ago

asked 58 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 2 hours ago

asked 2 hours ago

asked 2 hours ago