Question

Why sharp glass edges are heated for making them smooth?

Answer 1

Hey buddy here's your answer

Sharp glass edges are heated to make them smooth. Because on heating glass melts and the surface of the liquid tends to take the rounded shape at the edges which has minimum.

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Answer 2

Sharp glass edges are heated for making them smooth

Explanation:

• Sharp glass edges are heated to make them smooth. This is because, on heating, the glass melts and takes up rounded shape at the edges which have minimum surface area. This is called fire polishing of glass.
• Fire polishing the ends of glass tubes and rods will seal small cracks in the end wall, reducing the chance of fracture originating from this source.
• Fire polishing the ends will also reduce cuts and abrasions or anything (corks, latex tubing, etc.) coming in contact with the glass end.

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