Biochemistry 4th Edition by Reginald Garrett, Charles Grisham

Exercise 12

Energetics of the enolase reaction
(Integrates with Chapter 3.) Enolase catalyzes the conversion of 2-phosphoglycerate to phosphoenolpyruvate + H20. The standard free energy change, G°', for this reaction is +1.8 kJ/mol. If the concentration of 2-phosphoglycerate is 0.045 mM and the concentration of phosphoenolpyruvate is 0.034 mM, what is G, the free energy change for the enolase reaction, under these conditions