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Topic: EFFUSION  (Read 2659 times)

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Offline tree_12345

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EFFUSION
« on: May 22, 2011, 01:30:00 PM »
why does the  diameter of the hole has to be considerably smaller than the mean free path of the molecules that are effusing? wouldn't the molecule collide in it?
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Offline Jorriss

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Re: EFFUSION
« Reply #1 on: May 22, 2011, 02:02:04 PM »
Basically, if the hole is too long, molecules may collide in it and may go back into the container. If the diameter is too wide, it won't even be effusion.
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Offline tree_12345

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Re: EFFUSION
« Reply #2 on: May 22, 2011, 02:51:40 PM »
thank you very much you've been really helpful   :)
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