Relation of D_e (diffusion coefficient) with moisture content (θ)

A. D_e increase with increase in θ

B. D_e decrease with increase in θ

C. D_e increase with increase in θ upto saturation

D. None of the above

Answer: Option C

Solution(By Examveda Team)

The diffusion coefficient (D) is the amount of a particular substance that diffuses across a unit area in 1 s under the influence of a gradient of one unit.
Moisture content is determined by subtracting the dry weight from the initial weight, and the moisture content is then calculated as the amount of water divided by the dry weight or total weight.
The relation of D_e (diffusion coefficient) with moisture content (θ) is that D_e increase with the increase in θ up to saturation.