# Problem: What is the ratio of effusion rates for the lightest gas, H2, and the heaviest known gas, UF6?

###### FREE Expert Solution

$\overline{)\frac{{\mathbf{rate}}_{\mathbf{1}}}{{\mathbf{rate}}_{\mathbf{2}}}{\mathbf{=}}\sqrt{\frac{{\mathbf{MM}}_{\mathbf{2}}}{{\mathbf{MM}}_{\mathbf{1}}}}}$

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###### Problem Details

What is the ratio of effusion rates for the lightest gas, H2, and the heaviest known gas, UF6?