1.

The standard reduction potential at `25^(@)C` for the reaction, volt. The equilibrium constant for the reaction `:` isA. `10^(-12)`B. `10^(-14)`C. `10^(-11)`D. `10^(-11)`

Answer» Correct Answer - b
Anode`: H_(2)implies2H^(o+)+2e^(-)," "E^(c-)=0V`
Cathode`: 2H_(2)O+2e^(-) rarr H_(2)+2overset(c-)(O)H,E^(c-)=-0.8277V`
`2H_(2)OhArr2H^(o+)2overset(Θ)(O)H`
Use `:=(E^(c-)._(cell)xxn_(cell))/(0.059)=logK_(w)`


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