When a mixture of glucose 6-phosphate and fructose 6-phosphate is incubated with the enzyme phosphohexose isomerase, the final mixture contains twice as much glucose 6-phosphate as fructose 6-phosphate. Which statement is MOST nearly correct, when applied to the reaction below (R = 8.315 J/mol · K and T = 298 K)? glucose 6-phosphate ↔ fructose 6-phosphate
A) Δ G'° is +1.7 kJ/mol. B) Δ G'° is -1.7 kJ/mol. C) Δ G'° is incalculably large and negative. D) Δ G'° is incalculably large and positive. E) Δ G'° is zero.