Chapter 17, Problem 53E

Estimate  for the half-reaction

$2{\text{H}}_{\text{2}}\text{O }+2{\text{e}}^{-}\to {\text{ H}}_{\text{2}}+2{\text{OH}}^{-}$

given the following values of $\Delta G_{\text{f}}^{\text{o}}$:

${\text{H}}_{\text{2}}\text{O}\left(l\right)=-237\text{ kJ/mol}$

${\text{H}}_{\text{2}}\left(g\right)=0.0$

${\text{OH}}^{-}(aq)=-157\text{ kJ/mol}$

${\text{e}}^{-}=0.0$

Compare this value of  with the value of  given in Table 17-1.