Why the melting point of glass is not fixed?
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Explanation:
Glass does not have a fixed melting point as water has. Rather, as glass is heated, it softens more and more and melts gradually over a wide temperature range. The hotter it gets, the more easily the glass flows. The resistance of a liquid to flow is called its VISCOSITY.
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Answer:
It is made up of silica and other sand particles
Explanation:
As it is made of silica and other sand particles, it takes the for the glass to melt as all the sand particles should reach a melting point.when you continuously heat the glass it melts and melts and goes on becoming a fluid.its boiling point is around 1700°C
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