Question

The reaction of glucose with oxygen to produce carbon dioxide and water, Glucose + 6O2 -> 6CO2 + 6H2O has a ΔG° of -2880 kJ mol-1, making it a strongly exergonic reaction. However, a sample of glucose can be maintained indefinitely in an oxygen-containing atmosphere. How can these two facts be reconciled? A. The glucose must be in solution for its oxidation to occur. B. A negative value of ΔG° indicates that the reaction is favored thermodynamically, so it should proceed in the direction written. C. Although the reaction is exergonic, the activation energy barrier for the reaction is so high that the reaction occurs very slowly. D. The oxidation of glucose to CO2 and H2O requires an enzyme for the reaction to proceed. E. None of the above

          The reaction of glucose with oxygen to produce carbon dioxide and water,
Glucose + 6O2 -> 6CO2 + 6H2O
has a ΔG° of -2880 kJ mol-1, making it a strongly exergonic reaction. However, a sample of glucose can be maintained indefinitely in an oxygen-containing atmosphere. How can these two facts be reconciled?

A. The glucose must be in solution for its oxidation to occur.
B. A negative value of ΔG° indicates that the reaction is favored thermodynamically, so it should proceed in the direction written.
C. Although the reaction is exergonic, the activation energy barrier for the reaction is so high that the reaction occurs very slowly.
D. The oxidation of glucose to CO2 and H2O requires an enzyme for the reaction to proceed.
E. None of the above

Added by Timothy W.

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