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  • Why does a tightly closed metal lid of a glass bottle can be opened more easily if it is put in hot water for some time? 3

Why does a tightly closed metal lid of a glass bottle can be opened more easily if it is put in hot water for some time? 3

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When a bottle with a tightly-closed metal lid is put in hot water for sometime, its lid can be opened easily because metals have greater coefficient of expansion than glass. Therefore, when the metal lid comes in contact with hot water, it'll expand more than the glass container. As a result, it will be easier to open the bottle.

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Deependra Verma

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Because metals expands when its temperature increases and according to the question the metal lid will also expand when t is put in hot water and the bottel can be oppened easily

Posted by

samrat singh

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Yes

Posted by

Vikash verma

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BECAUSE OF THE COEFFICIENT OF EXPANSION

  • A tightly closed metal lid of a glass bottle opens easily when dipped in hot water for a certain as metals have a greater coefficient of expansion as compared to glass.
  • Hence, the lid expands at a faster rate as compared to jar, as there is a formation of a gap in between the bottle and lid of metal.
  • And further, as the lid of the metal expands so it can be opened more easily.

 

Posted by

thandrasrivarsha1719

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Its because of  coefficient of expansion of metal is greater than that of glass that is the expansion of a metal is only about 40% greater than that of the glass, For more questions, Visit https://www.edmat.org/

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Education Matters

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