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![[Post New]](/templates/default/images/icon_minipost_new.gif) 6 May 2008 21:43:28 IST
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we al know that a hot air ballon rises as hot air is lighter and gives it a buoyant force to go up but my ques is that after reaching a certain height why does a hot air balloon bursts
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6 May 2008 21:45:03 IST
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because of change in pressure....at gr8 hts the pressure is very low......lower than the pressure of He gas used in the ballon.....so it naturally bursts.....hope u got it.....~Cheers...
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6 May 2008 21:46:23 IST
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yaar i am not talking about a heliun balloon i want to know about a hot air balloon
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6 May 2008 21:48:31 IST
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cmon guys plzz ans
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6 May 2008 21:50:54 IST
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hot air ballon is filled with He wich is made to brn inside........He is the gas tht burns not ordinary gas....
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6 May 2008 21:52:15 IST
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see in the balloon the temp is high which means high pressure so why does the pressure inside is low
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6 May 2008 21:53:02 IST
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Hey ananth_pathri,
You can never ever burn Helium gas!!!
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Talk less work more!! {To be simplistic and gain respect}
Eat less work more!!! {To "build" ur body}
Work less Do more!!! {2 make ur life big}
        
don't get scared !!!
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6 May 2008 21:53:27 IST
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i agree with you uday
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6 May 2008 21:53:35 IST
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pressure at higher altitudes is low and inside the ballon its high so there will be burst.....
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6 May 2008 21:54:46 IST
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but at low altitudes also the pressure is low as compared to the balloon
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6 May 2008 21:55:32 IST
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OH!...really????!!!!!!some thing of those gases will be made to burn...i am not a hot air ballon manufacturer to know those details..........
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6 May 2008 21:56:59 IST
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ok dude thanks for you efforts and plzzzzzzzzz if anyone knows the correct ans plz tell me i didnt found it on google
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6 May 2008 21:59:03 IST
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oh cmon guys 60 users online but no one knows this where are the xperts
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6 May 2008 22:06:27 IST
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wel m not sure of this but i think, every material has its own capacity to sustain pressure,,,when the pressure is beyond the limit, it bursts,,,think of the tubes of vehicles.
The same may be the case with hot air baloons.
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6 May 2008 22:14:55 IST
Accepted Answer [?]
![[Up]](/templates/default/images/icon_up.gif)
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namaste..
itni fights mat kiya karo..
u all must have read about elasticity limit in NCERT.
thats d key,, when baloon reaches a height , in normally filled baloon pressure inside keeps on constantly rising, this stress-strain curve reaches elasticity limit, n bursts..
Thus in hot-air baloon where burning gases are used, flame is made to decrease and there is a certain limit to rise ..
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