Posted by Jess on Wednesday, November 10, 2010 at 12:33am.
I expect you are not carrying it out to enough decimal places. The ratio of 235/238 is almost 1.00 (but not quite).
The other thing is you need to include UF6 and not just U. Sine the 3*R*T will be the same, you can get by, I think with just sqrt(1/M) vs sqrt(1/M). I went through in a really big hurry and got something like 1.004 or so but you need to do it more precisely. I worked in Oak Ridge, TN for a while (where one of the gaseous diffusion plants is located) and they have many, many separation stages (because the ratio IS so close to 1.00 as you point out).
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