Extremely Quick Question (2 or 1 second)

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Homework Help Overview

The discussion revolves around the thermal properties of tempered glass, specifically concerning the behavior of air bubbles within the glass when subjected to heat. Participants are exploring the implications of heating glass to 200 degrees Celsius and the potential effects on embedded air bubbles.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • Participants discuss the size of air bubbles and their potential to expand under heat. There is consideration of whether the existing conditions during the glass formation affect the outcome when heated.

Discussion Status

The conversation includes various perspectives on the relationship between bubble size and the risk of glass breakage due to thermal stress. Some participants suggest that prior conditions during glass formation may mitigate concerns about bubble expansion.

Contextual Notes

Participants reference the manufacturing process of the glass and the importance of trusting the producer's claims regarding the glass's safety at high temperatures.

Fusilli_Jerry89
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Just a quick question about glass.. I bought a glass piece that is supposed to heat up to around 200 degrees celsius (it's tempered). I noticed that the glass has some bubbles in it. My question is..will the heat cause the the air in those bubbles to expand enough that they explode? Thx
 
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Well I guess it would depend ont he size of the air bubbles, the heat would probably cause it to expand, but wether it would cause the glass to crack I think it down to the size of the bubbles.
 
They have a radius of about a third of a millimeter..
 
The glass was formed at temperatures higher than 200C with the air bubbles already in there. So if they didn't explode when it was being cooled, they won't explode when it's heated up. What will cause it to break is stresses in the glass if you heat it up too fast, even if it is tempered. Take it easy.
 
If you can trust the company who produced the glass then you can fairly certainly trust the glass, if not...
Dick said:
Take it easy.

And wear goggles! :-p
 
thanks! :)
 

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