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Chemistry / Re: A question about metallic sodium
« on: 11/07/2006 16:16:17 »
4Na + 2H2O + O2 = 4(NaOH) + about 1214 kj
4 mol is about 92 g.
1000 g. / 92 g. * 1214 = about 13.200 kj = about 3.7 kwh.
If input energy / output energy is 2 then it needs about 7,4 kwh but
its cost in USA would surpass 0,5 euro(the cost of 1 kg od Na).
Therefore the required energy is surely less than double.
nothing is created and nothing is destroyed
4 mol is about 92 g.
1000 g. / 92 g. * 1214 = about 13.200 kj = about 3.7 kwh.
If input energy / output energy is 2 then it needs about 7,4 kwh but
its cost in USA would surpass 0,5 euro(the cost of 1 kg od Na).
Therefore the required energy is surely less than double.
nothing is created and nothing is destroyed