| From: | Don Cox |
| Date: | 3 Aug 2001 at 19:23:03 |
| Subject: | Re: FUSION MYSTERY |
On 03-Aug-01, neil@tkgbbs.freeserve.co.uk wrote:
>> Unless there's a different meaning in temperature here?
>
> I'll get my text books out and work out what happens again.
The temperature is the average speed of the molecules (or ions) in the
gas. But if there are very few of them, as there are in a lamp which is
nearly a vacuum, they will have a negligible effect on the glass walls.
A tiny proportion of the glass molecules will be struck by gas
molecules, but not enough to raise the average speed of the glass
molecules significantly.
In a hot solid, the atoms jiggle around a fixed point, but still at a
higher speed than in a cold solid. In a hot gas they fly around freely
until they hit something.
Regards
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