Where n n is the number of electrons transferred, F F is Faraday's constant, 96.5 kJ·mol−1·V−1, and Δ E ∘ ′ ΔE∘′ is the difference in reduction potential. For each of the given reactions, determine the number of electrons transferred ( n ) (n) and calculate standard free energy ( Δ G ∘ ′ ) (ΔG∘′) . Consider the half-reactions and overall reaction for reaction 1. half-reactions: fumarate 2 − + 2 H + − ⇀ ↽ − succinate 2 − CoQH 2 − ⇀ ↽ − CoQ + 2 H + half-reactions:fumarate2−+2H+↽−−⇀su ccinate2−CoQH2↽−−⇀CoQ+2H+ overall reaction: fumarate 2 − + CoQH 2 − ⇀ ↽ − succinate 2 − + CoQ Δ E ∘ ′ = − 0.009 V overall reaction:fumarate2−+CoQH2↽−−⇀succin ate2−+CoQΔE∘′=−0.009 V n = n= Δ G ∘ ′ = ΔG∘′= kJ ⋅ mol − 1 kJ⋅mol−1 Consider the half-reactions and overall reaction for reaction 2. half-reactions: cytochrome c 1 ( Fe 2 + ) − ⇀ ↽ − cytochrome c 1 ( Fe 3 + ) cytochrome c ( Fe 3 + ) − ⇀ ↽ − cytochrome c ( Fe 2 + ) half-reactions:cytochrome c1(Fe2+)↽−−⇀cytochrome c1(Fe3+)cytochrome c (Fe3+)↽−−⇀cytochrome c (Fe2+) overall reaction: cyt c 1 ( Fe 2 + ) + cyt c ( Fe 3 + ) − ⇀ ↽ − cyt c 1 ( Fe 3 + ) + cyt c ( Fe 2 + ) Δ E ∘ ′ =