Question

Calculate the diffusion constant of argon (𝜎 = 0.36 𝑛𝑚2 ) at 25°C and (a) 1.00 Pa, (b) 100 kPa, (c) 10.0 MPa. If a pressure gradient of 0.10 atm 𝑐𝑚−1 is established in a pipe, what is the diffusion flux of gas? 

Answer 1

Diffusion flux of gas=$35.83molm^{-2} s^{-1}$