I hope I translate proper:
"If we know how much energy we should spent on creating Mn3O4 from components, how then should we evaluate the temperature at which this oxyde shall dissociate in the air. Also the dissociation pressure for this oxyde is given (very low in Pascals, I said)"
I would be extra glad if you help me understand this topic. One little girl (studying in university, I mean) asked me if I could explain her to solve some education "problems" from "chemistry physics". I think I solved 3 puzzles, but stuck with fourth (given above). I think it is due to lack of special knowledge (I am electronics developer, so I made great websurfing to understand and solve first tasks - I found it excitingly interesting
So I ask firstly for some book or formulas - I want to understand how all this matters are connected.
sincerely yours,
Rodion