CHEM1612
2012-N-11
November 2012
Calculate the standard Gibbs free energy of the reaction at 25 °C.
The Gibbs free energy change is related to the standard cell potential through:
o
o
= -nFE
ΔG
-1
-1
= - 6 × (96485 mol
) × (0.50 V) = -290 kJ mol
-1
Answer: -290 kJ mol
Express the overall reaction in the shorthand voltaic cell notation.
3+
2+
Cr(s) | Cr
(aq) || Ni
(aq) | Ni(s)