Amount of electricity required to pass through the H 2 O voltameter so as to liberate 11.2 liter of hydrogen will be
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A
Mass of hydrogen in 11.2 liters of hydrogen 
We know that 1 gm of hydrogen is equal to 1 gm equivalent wt. of hydrogen. It means that 11.2 liter of hydrogen at NTP represents 1 gm equivalent of hydrogen, so for liberation it requires 1 Faraday electricity.
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