College Chemistry Quiz
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THERMODYNAMICS & ELECTROCHEMISTRY
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The reaction 3-phosphoglycerate → 2-phosphoglycerate has ΔG∘=+4.4\Delta G^\circ = +4.4 kJ/mol. In glycolysis, this reaction is coupled with the subsequent conversion 2-phosphoglycerate → phosphoenolpyruvate (ΔG∘=+1.7\Delta G^\circ = +1.7 kJ/mol), which is then coupled to ATP synthesis (ΔG∘=+30.5\Delta G^\circ = +30.5 kJ/mol). What is the minimum ΔG∘\Delta G^\circ required for the driving reaction to make this three-step sequence thermodynamically favorable?
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