The discussion centers on determining the dimensions of the diffusion constant D in the equation N = -D (n2 – n1)/(x2 – x1), where N represents the number of particles crossing per unit area per unit time, and n1 and n2 are the particle densities at positions x1 and x2, respectively. To solve for D, one must first identify the units of each variable in the equation. By rearranging the equation to isolate D and substituting the variables with their corresponding units, the dimensions of D can be established definitively.
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ishwar said:Homework Statement
The number of particles crossing per unit area perpendicular to X-axis in unit time is N = -D (n2 – n1)/(x2 – x1)
Where n1 and n2 are number of particles per unit volume for the value of x1 and x2 respectively. What are the dimensions of diffusion constant D?
Can anyone please tell me how to start this problem? Thanks