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Oxidation Energy?

Oxidation Energy?

Oxidation Energy?

(OP)
Trying to figure out if oxidation of nonferrous metals gives off enough heat to impact moisture content in a 20 ton pile after a sit period of 2 days. (approx. percent composition - soil 70 %, metals 20 %, 10 % rubber and foam)

RE: Oxidation Energy?

With that much soil it would be doubtful.  Ambient humidity will have a lot more to do with it than corrosion energy release.  My 2 cents.

RE: Oxidation Energy?

(OP)
I was actually wrong about the content. There is mostly metals (60 %) and about 30 % soil, but they are tiny particles (< 10 mm). Any information about oxidation and the amount of heat corrosion gives off would help. Thanks

RE: Oxidation Energy?

The difficulty with this is your kinetic information (2 days).  The thermodynamics are fairly straightforward.  The free energy of formation for nonferrous metals is around 1000 kJ mol-1, but it is practically impossible to know how many moles of metal have corroded in 2 days.  What is the environment?  Ambient Earth surface temperature?  Humidity level?  What are the heat transfer mechanisms?  Conduction into the Earth's crust?  Convection into the atmosphere?  Your problem is underdefined.

RE: Oxidation Energy?

Well said Cory. Reminds me of my teacher in Kinetics of Metallurgy. He would always say a chemical reaction is thermodynamically possible ,but kinetically not. The kinetic conditions have to be addressed, to determine if a reaction will proceed or not.

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