You must quickly determine the porosity of the soil on-site without taking it to

Question

You must quickly determine the porosity of the soil on-site without taking it to the

lab. You extract a soil core within the contaminated region. The sample tube which

contains the soil core has a total volume of 16.64 in3. The soil core within the sample

tube contains soil and pure phase TCE which occupies all of the pores space between the

soil grains. Using a scale, you weigh the sample tube containing the soil core and

determine it is 0.527 kg. Previous soil tests at the site have determined that the bulk

density (?b) of the soil is 1.52 g/cm3. You look up the density of TCE (?TCE) in a table

and determine that it is 1.462 g/cm3. What is the porosity of the soil?

Explanation / Answer

Porosity or void fraction is a measure of the void (i.e., "empty") spaces in a material, and is a fraction of the volume of voids over the total volume, between 0

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