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Net Directional Mass Transport
publish date: 2026/05/19 08:39:33.109976 UTC
Fill in the blank to complete the fundamental rule governing the net directional transport of matter during spontaneous diffusion:
During diffusion, the net movement of matter always proceeds from a region of higher concentration to a region of (1) concentration.
Correct Answer
(1) lower
Explanation
Statistically, because there are far more particles located in the high-concentration zone, random kinetic paths will naturally result in a greater net flux of particles moving outward into the less crowded, lower-concentration zones over time.
Reference
Basic Physics: A Self-Teaching Guide