Chemistry, 19.12.2019 03:31 Hardeep8560
The standard free energy change for a reaction can be calculated using the equation δ g ∘ ′ = − n f δ e ∘ ′ δg∘′=−nfδe∘′ 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+↽−−⇀succinate2−coqh2↽ −−⇀coq+2h+ overall reaction: fumarate 2 − + coqh 2 − ⇀ ↽ − succinate 2 − + coq δ e ∘ ′ = − 0.009 v overall reaction: fumarate2−+coqh2↽−−⇀succinate2−+coq δe∘′=−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 (
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The standard free energy change for a reaction can be calculated using the equation δ g ∘ ′ = − n f...
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