Calculate the relative rates of diffusion of""^235UF_6 and ""^238UF_6i

1.	Calculate the relative rates of diffusion of""^235UF_6 and ""^238UF_6in gaseous form (F= 19).
Answer» Solution :ACCORDING to Graham.s law of diffusion, `r_1/r_1 = sqrt(d_2/d_1) = sqrt(M_2/M_1)` The molecular weight of `""235UF_6 = 235 + (6 XX 19) = 349 (M_1)` The molecular weight of `""238UF_6 = 238 + (6 xx 19) = 352 (M_2)` `:. "" r_1/r_2 = sqrt(352/349)= 1.0043/1` HENCE, the rates of diffusion of`""^235UF_6 and ""^238UF_6 " are in the ratio " 1.0043 : 1`.

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