Thursday, May 3, 2007

The Haber process

To recap on what we've done today for those who might or might not remember as usual we went over the corrections for the equilibrium worksheets, this includes the reactant or product concentration graph and the state of dynamic sheet. That being said there really isn't much more to do then to give a summary on the "Haber Process". During the late nineteenth century it seemed that both North America and Europe begun to run out of edible crop and found that their soil just wasn't cutting it, so what could be done, simple (or not depending on your knowledge on farming) by adding to the soil a nitrogen-based fertilizers. Now for those who might not know plants have a tendency to use nitrate to promote protein formations and other plant benefiting functions. This was a good idea, however nitrogen was used in development of explosives, and with all the fighting going on a lot needed to be used . That's about when a German professor named Fritz Haber found a way to oxidize ammonia created from nitrogen to make nitrates and nitrites required for the production of nitrate fertilizer. The process went more or less as followed, he took nitrogen gas and hydrogen gas placed them in a closed container with a iron oxide catalyst, raised the temperature to 500 Celsius with a pressure of 40 MPa, the end result is a product yielding about 40% ammonia. That's about the general description of the Haber process created by Fritz Haber, that's Fritz Haber and for reference sake Le Chatelier, have those memorized? That's all I have to say so read this or the sheet, which ever is clearer and keep them in mind.

Today's daily reminders include- Review pages have them done! (or not)
Test on Monday. (doubt anyone will forget though)
I'm feeling a bit tired so I'll chose crystal as the next scribe being at the top of the list.(not that I have much of a selection).

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