Toanalyze:
The free energy changes occurring in the two reactions.
Introduction:
Gibbs free energy is the change in free energy, which is involved in
Explanation of Solution
The free energy changes (∆G°) in the given reactions can be calculated using the following procedure:
In this reaction, the electron acceptor is O2 and the electron donor is NADH. The number of electrons transferred is 2. The reduction potential for O2 is 0.815V and for NADH it is -0.32V.
Substituting the values of reduction potential for S and NADH.
Therefore, it can be concluded that Gibbs free energy for both the reactionsis negative, which implies that these are exergonic as well as spontaneous reactions. In exergonic reactions, energy is released.
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Chapter 9 Solutions
Biochemistry: The Molecular Basis of Life
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