What is the ratio of effusion rates for the lightest gas, H2, to the heaviest known gas, UF6?
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What is the ratio of the rate of effusion of the most abundant gas, nitrogen, to the lightest gas, hydrogen?
As discussed in the “Chemistry Put to Work” box in Section 10.8, enriched uranium can be produced by effusion of gaseous UF6 across a porous membrane. Suppose a process were developed to allow effusion of gaseous uranium atoms, U(g). Calculate the ratio of effusion rates for 235U and 238U, and compare it to the ratio for UF6 given in the essay.