Ten > Heat
Asked by Atith Adhikari · 2 years ago

If the lid of a glass bottle does not open, how may it be opened using your knowledge of the effects of heat? Explain based on the kinetic energy of molecules.

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Arpit Sundas Arpit Sundas · 1 year ago
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Solution

When the glass bottle with tight lid is heated, the lid of a glass bottle can be opened.

When you apply heat to an object, the temperature of that object increases, which in turn increases the kinetic energy of its molecules. The molecules begin to move more rapidly and vibrate more vigorously as they gain energy.

Different materials have different rate of expansion. So, due to difference in rate of expansion between lid and glass bottle, for same heat applied to them it may create a slight gap between the lid and the glass neck of the bottle.

In this way, the lid of the glass bottle could be opened.

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