Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • Engineering
  • 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

Answers (5)

best_answer

 

 

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.

Posted by

Deependra Verma

View full answer

JEE Main high-scoring chapters and topics

Study 40% syllabus and score up to 100% marks in JEE

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

View full answer

Yes

Posted by

Vikash verma

View full answer

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

View full answer

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/

Posted by

Education Matters

View full answer

Similar Questions