The molar diffusion flux for a cylinder with inner radius r1 and outer radius r2 is directly proportional to:

The molar diffusion flux for a cylinder with inner radius r1 and outer

1.	The molar diffusion flux for a cylinder with inner radius r₁ and outer radius r₂ is directly proportional to:
A.	tLn(r<sub>2</sub>/r<sub>1</sub>)
B.	tR<sub>2</sub>/r<sub>1</sub>
C.	t1/ln(r<sub>1</sub>/r<sub>2</sub>)
D.	t1/ln(r<sub>2</sub>/r<sub>1</sub>)
Answer» E.