Chapter 12, Problem 12.89QP

Interpretation Introduction

Interpretation:

Of the two solids, crystalline ${\text{SiO}}_{\text{2}}$ and amorphous ${\text{SiO}}_{\text{2}}$,the denser solid has to be identified.

Concept Introduction:

Crystalline solid is defined as the solid consists of atoms, ions or molecules arranged in a regular, definite and three dimensional patterns in a very long range order.  They have perfect geometry and structure.

Amorphous solid is defined as the solid consists of atoms or molecules arranged in irregular, random pattern.  They don’t possess perfect geometry and structure.

Density of a substance refers to the extent of compactness in the substance. It is mass per unit volume and represented as –

$\text{density = }\frac{\text{mass}}{\text{volume}}$

Greater the compactness of a substance less will be the volume it occupies and more will be the density.