how much ampere current should be used to get hundred ml O2 at 298 Kelvin temperature and 1 bar pressure? how much H2 is obtained per min.in the electrolysis?
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Answer:
how much ampere current should be used to get hundred ml O2 at 298 Kelvin temperature and 1 bar pressure? how much H2 is obtained per min.in the electrolysis?
Answered by
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Explanation:
No of coulombs = current in amperes×time in second
no of coulombs = 0.50×30×900
the first release of oxygen from water molecule
2H
2
O(l)→O
2
+4H
+
(aq)+4e
−
the alternative way of release of oxygen from water molecule
4OH
−
(aq)→2H
2
O(l)+O
2
(g)+4e
−
release of one mole of O
2
involve 4 mole of electron
4×96500coulomb gives 22.4dm
3
O_2 $$at STP
volume of oxygen=900×22.4/4×96500
=0.052
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