On Wed, Sep 24, 2014 at 10:13 PM, <mix...@bigpond.com> wrote: > In reply to H Veeder's message of Wed, 24 Sep 2014 21:46:11 -0400: > Hi, > [snip] > >I suspect both endothermic and exothermic reactions occur even inside the > >tokamak, but on balance more exothermic reactions occur. > > > >Harry > > Endothermic reactions only happen when ingoing particles have enough > kinetic > energy to make the reaction happen. IOW they are not really endothermic > when all > energy sources are taken into account. > > However most nuclear reactions where a neutron transfers to an external > proton > to create deuterium would be genuinely endothermic, and thus would not > occur, > unless of course the proton had high kinetic energy to start with. > > Of course it's possible that this happens, but the reactions going the other way
> are going to outnumber them by many thousands to 1, because very few of the > energetic protons created are immediately going to encounter another heavy > nucleus before losing some energy to ionization, and of those that do > immediately encounter another heavy nucleus, only a small percentage are > going > to produce D. > > Ok now lets return to condensed matter systems. All the nuclear reactions offer ed for reports of "excess heat" in such systems are suppose to be theoretically impossible. Since we are dealing in impossibilities from the outset, it seems like false logic to argue that the probability of endothermic reactions is improbable. Harry
