Consider the following electrochemical cell for the following questions.
Fe | FeBr2 (aq. 0.010 M) || KBr (aq, 1.0 M, Br2 (l) | Pt
What is the overall reaction occurring in the cell when current flows?
a) Fe(s) + FeBr2(aq) → KBr(aq) + Br2(l)
b) Fe(s) + Br2(l) → FeBr2(aq)
c) 2 FeBr2(aq) + Br2(l) → 2 FeBr3(aq)
d) 2 FeBr3(aq) → 2 FeBr2(aq) + Br2(l)
e) FeBr2(aq) → Fe(s) + Br2(l)
What is ΔG° of the overall reaction taking place in the cell when current flows?
a) 297 kJ
b) -297 kJ
c) 149 kJ
d) -149 kJ
e) 61.8 kJ
f) -61.8 kJ
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