Task 00076.
Determine the density gradient of carbon dioxide in the soil, if a gas with a mass of m = 6 kg has passed through the area S = 1 ha during t = 2 hours. Diffusion coefficient D = 0.04 cm2 / s. Determine how many times the soil weakens diffusion if the atmospheric temperature tв = 17 ° С.
Detailed solution with a brief record of the conditions, formulas and laws used in the decision, the conclusion of the calculation formula and the answer.
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