When a mixture of 3-phosphoglycerate and 2-phosphoglycerate is incubated at 25 °c with phosphoglycerate mutase until equilibrium is reached, the final mixture contains six times as much 2-phosphoglycerate as 3-phosphoglycerate. which one of the following statements is most nearly correct, when applied to the reaction as written? 3-phosphoglycerate ⇌ 2-phosphoglyceratea)δg'° is –4.44 kj/mol. b)δg'° is zero. c)δg'°is +12.7 kj/mol. d)δg'°is incalculably large and positive. e)δg'° cannot be calculated from the information given.