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Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074

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BuyFindarrow_forward

Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074
Textbook Problem

Molecular solids, network solids, and amorphous solids all contain atoms that are joined together by covalent bonds. However, these classes of compounds are very different in overall structure, and this leads to different physical properties associated with each group. Describe how the overall structures of these classes of solids differ from each other.

Interpretation Introduction

Interpretation:

The overall structures of molecular, network and amorphous solids differ each other has to be explained.

Concept introduction:

Molecular solid:

Molecular solids melt closer to 300 °C, which is can be either ductile or brittle. Many molecular solids have a large band gap between the valence band and conduction band.

Network solid:

Network solid has very high melting point, which are very hard.

Network solid doesn't conduct electricity, which are insoluble in water and organic solvents.

Amorphous solid:

In these solids particles are randomly arranged in three dimensions, does not have sharp melting points, which forms due to sudden cooling of liquid.

Explanation

Molecular solid has molecules held together by London dispersion forces, dipole-dipole forces and even by hydrogen bonds in regular fashion in a three-dimensional lattice. Since the intermolecular forces holding the particles are weaker, makes these solids having low melting and boiling point and as they lack ions/ electrons they have poor electrical conduction...

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