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2006-09-19 10:19:59 · 4 answers · asked by lil_azn_boy_94 1 in Science & Mathematics Chemistry

4 answers

one way to convert water to hydrogen and oxygen is through the process called Electrolysis_ using electricity as a source of energy to drive the reaction 2H2O+ENERGY=O2+2H2
BUT using energy to break water to form hydrogen to combine oxygen to form energy _in this way is rather circular. in fact, because of the laws of thermodynamics,you can,t break even in this exchange of energy. However,there exist better ways to disassemble water -namely using catalysis.
what does a catalyst do?
A catalyst is a chemical compound that acts to speed up a reaction, but in the process is not itself changed.Therefore the catalyst, at the end of reaction, is free to act again to assist another reactant through the reaction.here,
Catalysts work by lowering the energy barrier between the reactants and the products. In this case:
2H2O=ENERGY=2H2+O2
where it normally takes a tremendous amount of energy to convert reactants to products - the addition of a catalyst can decrease the amount of energy required and therefore speed the reaction up!
2H2O+CATALYST+energy=2H2+O2+CATALYST.

2006-09-19 11:45:56 · answer #1 · answered by Anonymous · 0 0

Electrolysis where you actually apply a current. Hydrogen is reduced at the cathode, oxygen is oxidized at the anode.

2006-09-19 10:23:31 · answer #2 · answered by TheOnlyBeldin 7 · 1 0

Hi. With two electrically charged electrodes.

2006-09-19 10:22:31 · answer #3 · answered by Cirric 7 · 0 0

using electrolysis

2006-09-19 10:27:53 · answer #4 · answered by hari 2 · 0 0

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