C) A test tube made of ordinary glass cracks on plunging into boiling water whereas a
red hot test tube made of fused silica can be safely plunged into normal water, why?
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2
Answer:
Normal glass is an insulator i.e, it is a poor conductor of heat. When a very hot liquid is poured into a glass tumbler, the surface of the glass which is in contact with the hot liquid heats up and expands as per its coefficient of thermal expansion.
Answered by
2
Answer:
Normal glass is an insulator i.e, it is a poor conductor of heat. When a very hot liquid is poured into a glass tumbler, the surface of the glass which is in contact with the hot liquid heats up and expands as per its coefficient of thermal
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