structural:scholar_edition, information:highlighting, structural:expansion, linguistic:voice_change
O and NADH: energy-releasing reactions

Q + H + (aq) + NADH ⟶ QH 2 + NAD + {\displaystyle {\ce {Q + H+(aq){}+ NADH -> QH2 + NAD+ {}}}} Δ r G o ′ = − 81 kJ/mol {\displaystyle \Delta _{r}G^{o'}=-81{\text{ kJ/mol}}}