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1. |
During a diffusion process, at time 1s the average atom will have advanced a radial distance r from the origin and it is given by_________ (D = 2.5*10-11 (m2/s)) |
A. | 48000m |
B. | 45000m |
C. | 36000m |
D. | 24000m |
Answer» B. 45000m | |