How do you separate hydrogen from oxygen after electrolysis of water?
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Consequently, how do you separate hydrogen and oxygen from water?
Splitting the hydrogen and oxygen in water is accomplished using a process called“ water electrolysis" in which both the hydrogen and oxygen molecules separate into individual gassesvia separate “evolution reactions." Each evolutionreaction is induced by an electrode in the presence of acatalyst.
Secondly, how do you get hydrogen out of water? Electrolysis produces very pure hydrogen from water for use in the electronics, pharmaceutical and foodindustries. Relative to steam reforming, electrolysis is veryexpensive. The electrical inputs required to split the water into hydrogen and oxygen account for about 80% of the costof hydrogen generation.
Thereof, how much energy does it take to separate hydrogen and oxygen from h2o?
Re: How much energy is required to split a water molecule into oxygen and hydrogen ? Yes,it takes at least as much energy to splitwater into O 2 and H 2 as is released whenthese gases combine to form water . This is about 260 kJ permole of water or just shy of 5 eV per molecule of water (4 electrons times 1.23 V).
Can you extract oxygen from water?
There is such a thing as "artificial gills" thatmechanically extract oxygen from water for a human tobreathe. See also Breathing in oceans full of air. As mentioned inthe first article, it would be possible to separate water into oxygen and hydrogen with electrolysis.