In an attempt to prepare a cup of tea, a student placed boiling water into a glass tumbler. The glass tumbler broke into pieces .Explain this observation
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When boiling water is poured into a thick tumbler its inner surface expands. However, due to low thermal conductivity of glass, the expansion of outer surface of the tumbler is quite small. Due to uneven expansion of the outer and inner surfaces, the tumbler breaks.
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The glass tumbler broke due to excess heat of the water. The intermolecular force of attraction between the glass molecule reached to such a high level that it was not able to with stand more heat, due to which it broke.
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