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$\frac{{\mathbf{rate}}_{\mathbf{1}}}{{\mathbf{rate}}_{\mathbf{2}}}\mathbf{=}\sqrt{\frac{{\mathbf{MM}}_{\mathbf{2}}}{{\mathbf{MM}}_{\mathbf{1}}}}\phantom{\rule{0ex}{0ex}}\frac{{\mathbf{rate}}_{{}^{\mathbf{235}}\mathbf{U}}}{{\mathbf{rate}}_{{}^{\mathbf{238}}\mathbf{U}}}\mathbf{=}\sqrt{\frac{{\mathbf{MM}}_{{}_{{}^{\mathbf{238}}\mathbf{U}}}}{{\mathbf{MM}}_{{}_{{}^{\mathbf{235}}\mathbf{U}}}}}\phantom{\rule{0ex}{0ex}}\frac{{\mathbf{rate}}_{{}^{\mathbf{235}}\mathbf{U}}}{{\mathbf{rate}}_{{}^{\mathbf{238}}\mathbf{U}}}\mathbf{=}\sqrt{\frac{\mathbf{238}}{\mathbf{235}}}$

As discussed in the “Chemistry Put to Work” box in Section 10.8 in the textbook, enriched uranium can be produced by effusion of gaseous UF_{6} across a porous membrane. Suppose a process were developed to allow effusion of gaseous uranium atoms, U(g).

Compare the ratio of effusion rates for ^{235}U and ^{238}U to the ratio for UF_{6} given in the essay in the textbook.

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Our tutors have indicated that to solve this problem you will need to apply the Effusion concept. You can view video lessons to learn Effusion. Or if you need more Effusion practice, you can also practice Effusion practice problems.

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Based on our data, we think this problem is relevant for Professor Randles' class at UCF.