1.

The quantify of electricity required to liberate 112 cm^(3) of hydrogen at STP from acidified water is

Answer»

0.1 Faraday
06500 Coulombs
965 Coulombs
1 Faraday

Solution :2g of `H_(2)` at S.T.P liberated `= 22400 cm^(3)` 1 G of `H_(2)` at S.T.P liberated = `11200 cm^(3)` For liberation `11200 cm^(3) H_(2)` at S.T.P. required = 96500C
For liberation `112 cm^(3) H_(2)` at S.T.P required
`= (96500 XX 112)/(11200) = 965C`


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