sci.physics.electromag

> Sorry but after yours "Hydrogen, in a gaseous state is just H" I assumed
> that it will be helpful. This is shorter:
> /services/lecturedemo/info/
>

Interesting but again this shows a chemical reaction. I'm interested in an
exothermal non-chemical event.



>> When Pt is immersed in H2 (only), it appears that the Pt gets Very Hot.
>
> That " it appears". Where can we read about this? H and Pt make something
> like alloy. May be that heat of solution is high.

Here is a quote from one of the first websites I looked at,
/template/AssetDetail/assetid/27722?&print=yes

"And Döbereiner observed in 1823 that when platinum metal (in a finely
dispersed form called platinum sponge), was exposed to hydrogen, much heat
was generated. The platinum (Pt) in fact glowed red- to white-hot."

>
>> I am interested in what is going on to cause Pt to emit IR and Visible
>> light EM radiation when in the presence of hydrogen gas and ONLY hydrogen
>> gas.
>>
>> No catalytic conversion. No chemical reaction. Just Platinum and
>> Hydrogen.
>>
>> This *must* have been studied,
>
> Before study "must* have been done a description of the phenomenon. Can
> anybody help?
>
>> but all I have been able to find is anecdotal information: (it gets hot)
>
> "hot" is closee to warm, not to Visible light EM
>
>>or discussions of how this phenomenon can be used to light cigars, ignte
>>various gases that contain hydrogen, and (occasionally) blow things up.
>
> It seems that there was the oxygen.
> S*

What I am beginning to wonder is if it is the adsorption that is causing the
heat (as implied above) or is it the catalytic (and exothermic) reaction
that is the heat source. I am beginning to strongly suspect the latter. None
of the discussions that I have found re adsorption and different metals make
mention of heat.

Sounds like Döbereiner (and those that copied the American Scientist article
may have gotten it wrong!

Thanks to all that replied!

Bill Miller



>