Task: Text Categorization
Input (English): Non-equilibrium versions of this phenomenon are governed by the Onsager relations. This phenomenons namesake coefficient is related to its namesake constant by an Arrhenius equation; its namesake length is given by twice the square root of that coefficient times the timescale. Classically, this behavior is governed by Ficks law, which states that the current is proportional to minus the concentration gradient or, in other words, that substances move from regions of high concentration to regions of low concentration. For 10 points, name this physical behavior, a type of motion that occurs in systems of randomly moving particles.
Output (English): Science