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Question
in the electrolysis of water why is the volume of gas collected over one electrode is double the gas collected Over The Other electrode?
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Solution
Dear student,
In the electrolysis of water, water get decomposed into hydrogen gas(H2) and oxygen gas(O2).
2 H2O(l) → 2 H2(g) + O2(g)
Since in a water molecule(H2O), 2 atoms of H and 1 atom of O is present.
By volume, amount of hydrogen is double the amount of oxygen in a molecule of water.
Hence,in the electrolysis of water the volume of H2 gas collected over cathode is double the volume of O2 gas collected over anode.
Regards
In the electrolysis of water, water get decomposed into hydrogen gas(H2) and oxygen gas(O2).
2 H2O(l) → 2 H2(g) + O2(g)
Since in a water molecule(H2O), 2 atoms of H and 1 atom of O is present.
By volume, amount of hydrogen is double the amount of oxygen in a molecule of water.
Hence,in the electrolysis of water the volume of H2 gas collected over cathode is double the volume of O2 gas collected over anode.
Regards
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