But would pass right through the rubber. They used it to check sealed
batteries as it was the easiest thing to leak out and be readily detected.
Paul
On 8/1/2006 10:35:20 PM, Jason Hartberger (jhartberger@mail.com) wrote:
> So... theoretically speaking, then, since helium has an even lower
> density than either nitrogen or regular air, then it would react the
> least to temperature changes, right? AND, it would make your car lighter
> cos
> it's helium! I may be onto something here... obviously hydrogen is
> (the only thing) lighter than helium but most people associate hydrogen
> with 'bomb' or 'hindenburg' so that wouldn't
> be a very good selling
> point... helium tires? anybody?
>
> Jason
>
>
> Jon Heese wrote:
> > Actually,
> you're forgetting one important point.
> >
> > The Ideal Gas Law says that for *any* gas:
> >
> > PV = nRT
> >
> > Where P = pressure, V = volume, T = temperature, n = number of moles
> > of the gas and R = some garbage constant to make the units fit.
> >
> > So, looking at this equation, you can see that raising the temperature
> > (T) of the system will raise the pressure (P) and/or the volume (V).
> > The amounts of these two effects depends on the container, in this
> > case, the tire, but at least one of them must increase to make the
> > equation work.
> >
> > Now, the problem with your assertion that both "air" and nitroge
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