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Modes-and-Diffusion

Estimate diffusion coefficient of carbon monoxide through air in which mole fractions of each constituents are
O 2 = 0.18
N 2 = 0.72
CO = 0.10
The gas mixture is at 300 K and 2 atmosphere total pressure. The diffusivity values are
D CO = 18.5 * 10 -6 m2/s at 273 K, 1 atm
D CN = 19.2 * 10 -6 m2/s at 288 K, 1 atm
The subscripts C is carbon monoxide, O is oxygen and N is nitrogen


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This Chapter Modes-and-Diffusion consists of the following topics

Estimate the diffusion coefficient for ammonia in air t 25 degree Celsius temperature and one atmospheric pressure.
For ammonia,
Molecular weight = 17
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For air,
Molecular weight = 29

Estimate diffusion coefficient of carbon monoxide through air in which mole fractions of each constituents are
O 2 = 0.18
N 2 = 0.72
CO = 0.10
The gas mixture is at 300 K and 2 atmosphere total pressure. The diffusivity values are
D CO = 18.5 * 10 -6 m2/s at 273 K, 1 atm
D CN = 19.2 * 10 -6 m2/s at 288 K, 1 atm
The subscripts C is carbon monoxide, O is oxygen and N is nitrogen

What is the molecular weight of Sulphur-dioxide?

Estimate the diffusion coefficient of carbon monoxide through air in which the mole fractions of each constituents are O 2 = 0.18 N 2 = 0.72 CO = 0.10 The gas mixture is at 300 K and 2 atmosphere total pressure. The diffusivity values are D CO = 18.5 * 10 -6 m2/s at 273 K

1 atm D CN = 19.2 * 10 -6 m2/s at 288 K

1 atm The subscripts C is carbon monoxide

O is oxygen and N is nitrogen

Modes and Diffusion

Mass-Transfer