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Reply Sat 14 Apr, 2012 08:47 am
take a plastic bottle and fill it full with hot water and close the lid tightly . leave it for cooling for few hours . what change is observed in the shape of bottle
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Type: Question • Score: 3 • Views: 697 • Replies: 8
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contrex
 
  2  
Reply Sat 14 Apr, 2012 08:51 am
Have you tried it?
0 Replies
 
cicerone imposter
 
  1  
Reply Sat 14 Apr, 2012 09:41 am
I don't know if anyone posted this on a2k, but here's "science" in the best form possible. It's called "Caine's Arcade."

http://www.latimes.com/business/technology/la-fi-tn-caines-arcade-video-cardboard-arcade-20120411,0,7270609.story
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dalehileman
 
  1  
Reply Sat 14 Apr, 2012 11:12 am
@rohit malik,

Wouldn’t it depend upon the initial shape of the bottle
contrex
 
  1  
Reply Sat 14 Apr, 2012 12:09 pm
@dalehileman,
dalehileman wrote:


Wouldn’t it depend upon the initial shape of the bottle


... and its degree of rigidity?
dalehileman
 
  1  
Reply Sat 14 Apr, 2012 04:40 pm
@contrex,
Quite so
0 Replies
 
raprap
 
  1  
Reply Sat 14 Apr, 2012 05:07 pm
@rohit malik,
If the liquid is pure---no dissolved gasses.

Reply if the container is not rigid it would deform slightly due to the contraction of the liquid--the amount of deformation is a function of the volume, the temperature change and the coefficient of thermal expansion of the liquid.

If the container is rigid a small vapor volume will form--this vapor volume is also a function of the same three variables listed above and the vapor pressure of the liquid.

Rap
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raprap
 
  1  
Reply Sat 14 Apr, 2012 06:44 pm
@rohit malik,
FYI the opposite is quite dangerous--filling a rigid container completely with a cold liquid and heating it up can lead to hydraulic rupture-a euphamism for explosion (sudden energetic dissassembly). That is why propane tank limits are 80% of the capacity--to provide an expansion space.

Rap
dalehileman
 
  1  
Reply Sun 15 Apr, 2012 11:03 am
@raprap,
I’ve often wondered whether the large tonic water bottle ever explodes
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