Why does sharp glass edge become smooth on heating it up to its melting point in a flame ? Explain which property of liquids is responsible for this phenomenon ?

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Solution

Glass is an amorphous solid and does not have a sharp melting point.
Glass softens over a range of temperature and thus can be moulded and blown into shapes.

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Why does sharp glass edge become smooth on heating it up to its melting point in a flame ? Explain which property of liquids is responsible for this phenomenon ?

Glass is an amorphous solid and does not have a sharp melting point. Glass softens over a range of temperature and thus can be moulded and blown into shapes.

Glass is an amorphous solid and does not have a sharp melting point.
Glass softens over a range of temperature and thus can be moulded and blown into shapes.