A certain membrane has a diffusion constant D = 1.00 10-11 m2/s and a thickness of 1.00 10-6 m.The area of the membrane is 5.00 m2.If the difference in the concentration across the membrane is 2.44 atoms/m3,then the rate of particles diffusing through the membrane is
A) 1.05 1021 s-1.
B) 1.22 1021 s-1.
C) 2.03 1021 s-1.
D) 2.83 1021 s-1.
E) 3.27 1021 s-1.
Correct Answer:
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