What do you think would be the volume of hydrogen and oxygen obtain when 90 gm of water is electrolysed?
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When 30 amperes is passed for 193 minutes, the quantity of current passed =193×60×30=347400 coulombs.
=347400/96500=3.6 Faradays.
H
2
O
electrolysis
H
2
+0.5O
2
So on passing 1 Faraday of electricity, 1 mole of Hydrogen and 0.5 mole of Oxygen are produced.
On passing 3.6 Faradays of electricity 3.6 moles of Hydrogen and (3.6×0.5)=1.8 moles of Oxygen will be formed.
So the volume of Hydrogen produced at STP =3.6×22.4=80.64 liters.
Volume of oxygen produced at STP =1.8×22.4=40.32 liters.
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