Question

A sample of Br2(g) takes 36.0 min to effuse through a membrane. How long would it take the same number of moles of Ar(g) to effuse through the same membrane?

Answer 1

18 min

ne Graham's law of diffusion and effusion ni, a number of moles, ty time, M = molar mass From the data BYR AX non "=0 =1 t = 36 min Mi = 160g/mol 2=40g/mol . Substitute all the values axt albumin = the one 160 g/mol > t = 36min. I ta = 36 min. + t = 18 min 18 min would take Ar to the same number of moles of through Same membrane. effuse