Fundamental Concepts of Faradic Non Faradic Electrochemical Process

In this video viewers will get insight of Faradic and Non Faradic processes. Investing time on this video would ensure clear concept.

[@GG-fd31]

Excellent video, following these videos with a textbook helps in reinforcing concepts.
A couple of points:
1. Where is the figure for non-Faradaic process (last slide) from? Can you quote sources in the description box?
2. Why is diffusion not considered mass transport in the early slide comparing Faradaic v/s non-Faradaic process ?
3. Could you also explain why the applied potential on the electrode decreases over distance from the electrode surface? Is sigma the charge density (q/A) ?
Thanks, I look forward to more videos. 👍👍