Discussion
Hydraulic conductivity has the dimensions of
Answer: C
Correct answer: velocity
From Darcy’s law \( v = Ki \), and since the hydraulic gradient is dimensionless, the conductivity has the same dimensions as velocity - metres per day being the usual unit in groundwater work. Note that it is a conductivity and not an actual velocity: it is the discharge per unit area of the whole cross-section, grains included, under a unit gradient.
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