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Give reasons for the following: When boiling water is poured into a glass bottle, it generally cracks. - Physics

Short Note

Give reasons for the following:

When boiling water is poured into a glass bottle, it generally cracks.

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Solution

When boiling water is poured into a glass bottle, it generally cracks because on pouring hot water in the bottle the inner surface heats up and expands more as compared to its outer surface. This unequal expansion between the two surfaces causes a strain and the bottle cracks.

Concept: Reactivity of Metals with Cold Water, Hot Water and Steam (With Products Formed).
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APPEARS IN

Frank Class 9 Physics ICSE
Chapter 5 Heat
Thermal Expansion | Q 9.1 | Page 202
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