The standard reduction potentials at are: Using these data

CHEMISTRY · Subjective · AP · Chemistry · Thermodynamics and Electrochemistry · Thermodynamics and Electrochemistry

Problem

The standard reduction potentials at

298\,\text{K}

are:

Fe^{3+} + e^{-} \rightarrow Fe^{2+}\quad E^\circ = +0.77\,\text{V}

I_{2} + 2e^{-} \rightarrow 2I^{-}\quad E^\circ = +0.54\,\text{V}

Using these data, calculate

\Delta G^\circ

(in

\text{kJ mol}^{-1}

of reaction) for the overall reaction

2\,Fe^{3+}(aq) + 2\,I^{-}(aq) \rightarrow 2\,Fe^{2+}(aq) + I_{2}(aq)

. (The Faraday constant is

9.65 \times 10^4\,\text{C mol}^{-1}