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Enter your answer in the provided box. The^235u isotope (atomic mus - 255.00) un

ID: 993399 • Letter: E

Question

Enter your answer in the provided box. The^235u isotope (atomic mus - 255.00) undergoes fission when bombarded with neutrons. However, its natural abundance is only 0."2 percent. lo separate it from the more abundant^235u isotope (atomic mass - 238.00). uranium is first convened to UF_6, which is easily vaporized above room temperature. The mixture of^235uf_6 and^238uf_6 gases Is then subjected to many stages of effusion. Calculate how much more quickly effuses than give the answer as the ratio of rates of to four decimal places.

Explanation / Answer

rate of effusion is inversely proportional to the square root of molar mass of the gas

Thus, effusion235U:effusion238U = sqrt(238/235) = 1.0064

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