jeds said:
-- do you have a theory as to where the heat is coming from?
It took a lot of digging but I finally came up with some numbers. These are from at least two independent (?) sources so I hope they're right. If any chemists out there want to shoot me down in flames, please feel free to do so.
Binding energy of molecular hydrogen (H2) = 436 kJ/mol.
Binding energy of nickel hydride = approx 170 kJ/mol.
(Metal hydrides are not precise compounds so their binding energies are hard to pin down.)
Each mole of H2 yields two moles of H and so the formation of nickel hydride should release about 340 kJ per mole of H2 - which is less than the 436 kJ needed to split the H2 molecule.
I can only surmise that hydride formation depends upon statistical effects. There's lots of H2 and not much NiH and so some H2 molecules will find enough energy to split and form hydrides. (This behaviour is normal in solid state physics, It's required for semiconductors to work.) From what I've read, the dissociation takes place mostly on the metal surface and then the atoms make their way in. Some metals are better at splitting H2 than others. Palladium is particularly good at it.
The important point to note is that the cold fusion experiments have all involved monatomic hydrogen (or, as our chemistry teacher called it, nascent hydrogen). These bare hydrogen atoms do not have to be split out of a molecule before they can do their stuff and are therefore extremely reactive. Instead of only a fraction of the available H2 molecules finding enough energy (from somewhere) to split and form hydrides, ALL of those bare atoms can rush straight into the metal where they can be expected to react vigorously.
EddieM said:
-- what I do find very disconcerting is you're rigid adherence to "accepted" models, this flies in the face of the inquisitive nature of science, slavish acceptance, makes you a non scientist!!
I actually find it sad that more scientists have not shown any real interest in what's going on. There's obviously a real and observable effect. Maybe the 'cold fusion' label is putting them off. That and the fact that Rossi is almost certainly keeping a lot of data to himself. Once again it would appear that greed and stupidity are getting in the way of good science.
WarmSoks said:
Unfortunately many people will not accept it because it doesn’t fit the current understanding
Unfortunately, the 'I don't believe it' mentality does exist. I can just about remember what happened to Eric Laithwaite when he tried to demonstrate his 'levitating gyroscope':
http://en.wikipedia.org/wiki/Eric_Laithwaite
He was more or less dismissed as a fruitcake.
He was wrong of course but that's not the point. Not one of those who would call themselves scientists bothered to ask the obvious question: "What's really going on?"
It was only much later that careful measurements on a giant set of floor scales revealed the answer. He was exerting considerably more force at ground level than he realized. The gyro stored this extra energy then released it as it rose above his head. Momentum was conserved and Newton continued to rest in (relative) peace.