Question: A s 2 S 3 can be made as a glass by quenching its molten mass into a mold, or by vacuum depositing its films

A s_{2} S_{3}

can be made as a glass by quenching its molten mass into a mold, or by vacuum depositing its films on a glass slide? The latter is said to contain high concentration of bonding defects. Explain what is meant here by such 'defects' in this glass, and why should their concentration be high in the latter form.

Briefly describe the random coil model of amorphous polymers such as polyethylene. What is the structural source of 'coiling' in this material. Can this model be appropriate to describe the structure of amorphous Se

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As2S3 can be made as a glass by quenching its molten

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