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helium

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milly143 | 08:41 Thu 14th Apr 2005 | Science
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This might not be in the right place but does a tanker filled with heliem weigh less than an empty one?
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Only if the Helium were at atmospheric or low pressure - Gasses are mostly transported as refrigerated liquids.
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cool, thanks!
A tank of helium at atmospheric pressure weighs more than an empty one, if by empty you mean containing a vacuum. It would be lighter than a container filled with air

if the helium is not compressed, then yes, it would weight less than a tanker full of air.

But then it might be compressed or liquified, and it that case it would be heavier

IN the terms you have asked it Milly, yes definitely.

This principle was used in the nineteenth century (like sort of when i was born and doing matric). You know the old balances for weighing? Someone did one with and without hydrogen and got some famous result or other. I think it was Jolly's Hydrogen balance

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