ChatterBank1 min ago
Why do Helium baloons defalte so quickly
Why is that? are helium Molecules smaller than air or of a higher pressure than air? Also posted on seasonal wonder which brain boxes get this first.
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In two words: Yes, both.
The gas inside the balloon is at a higher pressure than the air outside and helium atoms are the second smallest, only beaten by hydrogen - but whereas helium gas is made up of atoms, hydrogen is diatomic and goes around as molecules of H2.
The helium atoms easily diffuse through minute pores in the rubber membrane of the balloon.
The gas inside the balloon is at a higher pressure than the air outside and helium atoms are the second smallest, only beaten by hydrogen - but whereas helium gas is made up of atoms, hydrogen is diatomic and goes around as molecules of H2.
The helium atoms easily diffuse through minute pores in the rubber membrane of the balloon.
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