Question

Starting with a 10 mL of sand and a graduated cylinder 5 mL of water is added to the sand. after waiting for the water to completely fill the sand 3 mL of water is remain above the sand what is the porosity of the sand in percent?​

Answer 1

Answer:

Porosity of the sand is, 20 %.

Step-by-step explanation:

So according to the question,

10 mL of sand contains (5 - 3) mL = 2 mL of  water and this water fills the gaps or pores between the  sand partcles. So, porosity of the sand is given by,

   $\frac {2 \times 100}{10}$ %

  = 20 %