At 298 K the standard free energy of formation of `H_(2)O(l)` is `-237.20 kJ/"mole"` while that of its ionisation into `H^(+)` ions and hydroxyl ions is `80kJ/"mole"`, then the emf of the following cell at 298 K will be : [Take 1F = 96500 C] `H_(2)O(g, 1 bar)|H^(+)(1M)||OH^(-)(1M) |O_92)(g, 1bar)`A. 0.40 VB. 0.81 VC. 1.23 VD. `-0.40 V`

At 298 K the standard free energy of formation of `H_(2)O(l)` is `-237

1.	At 298 K the standard free energy of formation of `H_(2)O(l)` is `-237.20 kJ/"mole"` while that of its ionisation into `H^(+)` ions and hydroxyl ions is `80kJ/"mole"`, then the emf of the following cell at 298 K will be : [Take 1F = 96500 C] `H_(2)O(g, 1 bar)\|H^(+)(1M)\|\|OH^(-)(1M) \|O_92)(g, 1bar)`A. 0.40 VB. 0.81 VC. 1.23 VD. `-0.40 V`
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