[Tim_Lou]

available surfaces is a factor of reaction, temperature is also another factor.

considering the extreme high temperature caused by the crash of the plane and the explosion caused the metal to rip into pieces...............and i would say that there were plenty of rusted irons on the plane....

once molten iron was produced, the high temperature could possible causes more deadly reactions to occur...

also, melting away the steels inside the buildin can cause great structural damage...

recall from the video demo... the guy smashed 2 metal objects and preformed a "smaller" thermite reaction. in the case of 911, the reaction must be huge! there must had a lot more chemicals to react...

(he, nice to start a discussion in the chemistry group!)
(i dont wanna be unemployed as a Moderator....T_T)

[BlameTheEx]

Tim

Rusty iron on a plane??? There is very little iron of any sort on a plane. Aluminium alloys are the thing. Lighter. Certainly it is rigorously checked. Any significant corrosion, and it would not be allowed to leave the ground.

There was, no doubt, plenty of steel in the buildings, but these were very high-tech buildings. They would have been inspected regularly as well. Any corrosion would have been treated. I very much doubt there was much rust. Simple heat was more likely the problem. The steel just melted.

[Tim_Lou]

lets go to another topic!

[Tormod]

Originally posted by: Tim_Lou
lets go to another topic!

Hey, that's too easy, Tim. Is Blame right?

[Tim_Lou]

sorry, tormod, my bad english wording confuse you again...
it should be: lets start a new topic about the 911!

well, Irish, dont worry too much , the reaction isnt gonna be dangerous unless the metals are in powder form...

I wonder how a chemist's house oloks like and what his kids do at home....hehe

[Tim_Lou]

A possible truth of 9/11!!!!!

http://www.hypography.com/forums/mes...;enterthread=y

lets get the discussion going!

[Beef_Bourito]

Hey, I'm new to this forum. Actually it was this thread that lead me to it.

First off I'll explain my situation. Every year my school has an open house. There are different areas and one of them is chemistry, they always have a "magic" show, last year they were showing nitrogen triiodide. This year my chem teacher is thinking of doing a thermite reaction, he asked the grade 12's and only one person volunteered (it's a private school so there aren't many people) so he's asking the grade 11's to do research on the topic and I think he'll chose the person with the most/best information to do the demonstration.

I am in his grade 11 class and I want to do this (I love chemistry). My chem teacher is frustrated with me because i get 90+ on tests but dont hand in work so for him to chose me I really need to impress him. I want to know 1) how much heat energy is produced (in joules)? 2) Exactly what materials/equipment do i need (including what the equipment is made out of) 3) How high do particles fly/ should I have a shield on top as well as in front to protect the ceiling?

All your input is greatly appreciated

[Tim_Lou]

I would suggest you to do this demonstration outside, it is too dangerous to do this indoor since molten iron will burn whatever it touches.
the energy released calculation is as following:
Fe2O3 + 2Al --> Al2O3 + 2Fe
sum of delta H of products= -1676 kJ/mol *1 mol + 0
sum of delta H of reactants= -822.2 kJ/mol * 1mol + 0
delta H for this reaction = -1676 kJ + 822.2 kJ = -853.8 kJ
so, reacting 1 mol of Fe2O3 or 2 mols of Al (comepletely) would give you 853.8 kJ.

I aint any chem wizard... so, calculating how high particles fly.... seems impossible to me.

for equipments info, take a look at this website:
http://www.ilpi.com/genchem/demo/thermite/

or this:
http://www.chem.umn.edu/services/lecturedemo/info/Thermite.html