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Re: Whats in Helium?



>Doesn't it have to do with the fact that Rubber balloons are porous and you
>not only let some of the helium out, but you also converted some to another
>gas.  Osmosis at it's best.

Helium is a noble gas. It's inert. You can't convert it to another
gas, at least not without a fusion reactor.

It leaks out of rubber balloons because helium is a) monatomic (i.e.,
it exists as individual He atoms, not as diatomic pairs like H2, O2,
N2, Cl2, etc) and b) it is a very small atom to begin with. So it can
go right through the pores in the rubber.

Phil

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