Simulating Hydrogen diffusion out of a chamber (in air)

AI Thread Summary
The discussion centers on simulating hydrogen diffusion from a small container with a hydrogen source and a 30mm² opening. The user has implemented a simulation in Visual Basic 6, using a diffusion constant of 6.3E-5 for hydrogen in air to calculate the diffusion speed. Concerns are raised about the perceived slowness of the diffusion process, prompting questions about the accuracy of the simulation. The user invites others to review the program and source code, emphasizing its accessibility for further experimentation. The conversation seeks to clarify the governing equations related to hydrogen diffusion.
Oliver
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Hello,

I've a fysical problem.

A small container (about 10x10x15cm) has a source which releases hydrogen at a small rate.

The container has an small oppening 30mm^2.

The question is how fast does the hydrogen diffuse to the outside of the container.

I've made simmulation (see attachment) in visual basic 6.
In the simulation I took a molicule diffusion speed of
v = (2*D)^(0.5) (per sec).
D = diffusion constant of hydrogen in air (6.3E-5, giancoli)

The diffution seems to been veeerrrrryyyy slow.
Does this seem correct? Is it good by proxy?


I've included a small visual basic program and source code (not commented).
The program simulates hydrogen diffusion in a user made chamber. The occupation is calculated in the user defined box.

Everybody is free to use the program and sourcecode.


Oliver
 

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Please, post the governing equations.
 

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