A "facilitated" form of this process occurs across a cell membrane, and when water undergoes this process it is known as osmosis.
This process's namesake coefficient is calculated using Fick's Second Law. Molecules undergo this process by Brownian motion. Like a related process, the rate of this process is proportional to one over the square root of molar mass by Graham's Law. A "facilitated" form of this process occurs across a cell membrane, and when water undergoes this process it is known as osmosis. For 10 points, name this movement of a substance down its concentration gradient.
This process's namesake coefficient is calculated using Fick's Second Law.
{diffusion}