A tank truck, transporting a large amount of herbicide (in liquid form and volatile), topples over and spreads the load over a field beside the road. the liquid stays on the surface of the soil,...

A tank truck, transporting a large amount of herbicide (in liquid form

and volatile), topples over and spreads the load over a field beside the road. the liquid

stays on the surface of the soil, saturated with moisture, for a certain time before evaporating

up in the air. What model of diffusional mass transfer does it describe?

properly and allows you to calculate:

A. the threshold depth at which plant life and small

animals is virtually destroyed, assuming a given critical concentration

of herbicide and knowing the effective diffusivity of the herbicide in the soil

damp?

B. The time for evaporation of the herbicide in the air

surrounding?

Aug 21, 2022

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