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

Options

A. 0.1 Faraday
B. 06500 Coulombs
C. 965 Coulombs
D. 1 Faraday

Answer

C

Explanation

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`