Question

what is the porosity of rocks ?

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Answer 1

Answer:

Porosity is the percentage of void space in a rock. ... It is defined as the ratio of the volume of the voids or pore space divided by the total volume. It is written as either a decimal fraction between 0 and 1 or as a percentage. For most rocks, porosity varies from less than 1% to 40%...

Answer 2

Porosity is the percentage of void space in a rock.

Porosity = $\frac{ ( Total Volume - Volume of the Solid )}{(Total Volume ) } \times 100$

A larger percentage means that the rock has the ability to hold more water.