Equation 7.1 is the fundamental equation for detennining porosity of an aquifer material. However, porosity can also

Question:

Equation 7.1 is the fundamental equation for detennining porosity of an aquifer material. However, porosity can also be determined from a = l - (pb/p,) where p is the bulk density of the sample and ps is the density of the solids in the sample. Using the 8efinition of density, derive this expression from Equation 7. 1.