One statement describing this process utilizes a constant with dimensions of length squared over time, and that law sets the 
One statement describing this process utilizes a constant with dimensions of length squared over time, and that law sets the time derivative of concentration proportional to the second derivative of concentration with respect to position. A third law describing it states that the rate at which this process occurs is inversely proportional to the square root of the molar mass, and an example of this process governed by Fick's and Graham's laws is the movement of water across a semipermeable membrane. Osmosis is a type of, For 10 points, what process in which particles move from regions of high concentration to those of low concentration?
One statement describing this process utilizes a constant with dimensions of length squared over time, and that law sets the time derivative of concentration proportional to the second derivative of concentration with respect to position.
Diffusion [accept Effusion; prompt on Osmosis before mention]