19. Chemical Thermodynamics
Gibbs Free Energy
19. Chemical Thermodynamics Gibbs Free Energy
140PRACTICE PROBLEM
In cellular respiration, molecular oxygen is reduced by NADH to produce water. This reaction is an energy-yielding process in the form of adenosine triphosphate (ATP) Using the following reduction potentials,
O2(g) + 4 H+(aq) + 4 e− → 2 H2O(l) E°red = +0.82 V
NAD+(aq) + H+(aq) + 2 e− → NADH (aq) E°red = −0.32 V
At 298 K, what is the ∆G° for the reduction of O2 by NADH?
In cellular respiration, molecular oxygen is reduced by NADH to produce water. This reaction is an energy-yielding process in the form of adenosine triphosphate (ATP) Using the following reduction potentials,
O2(g) + 4 H+(aq) + 4 e− → 2 H2O(l) E°red = +0.82 V
NAD+(aq) + H+(aq) + 2 e− → NADH (aq) E°red = −0.32 V
At 298 K, what is the ∆G° for the reduction of O2 by NADH?