Problem: Consider the following isomerization reactions of some simple sugars and values for their standard Gibbs free energy ΔG∘:reaction A:glucose-1-phosphate⟶ glucose-6-phosphate, ΔG∘=−7.28 kJ/molreaction B: fructose-6-phosphate⟶⟶glucose-6-phosphate,ΔG∘=−1.67 kJ/molCalculate the equilibrium constant K for the isomerization of glucose-1-phosphate to fructose-6-phosphate at 298 K. Express your answer numerically using two significant figures.

FREE Expert Solution

Recall that ΔG˚rxn and K are related to each other:


ΔG°rxn=-RTlnK


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Problem Details

Consider the following isomerization reactions of some simple sugars and values for their standard Gibbs free energy ΔG∘:

reaction A:glucose-1-phosphate⟶ glucose-6-phosphate, ΔG∘=−7.28 kJ/mol
reaction B: fructose-6-phosphate⟶⟶glucose-6-phosphate,ΔG∘=−1.67 kJ/mol

Calculate the equilibrium constant K for the isomerization of glucose-1-phosphate to fructose-6-phosphate at 298 K. Express your answer numerically using two significant figures.

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