what is deltaG^0\' for the transfer of 2 electrons from ferredoxin red to NADP^+
ID: 188609 • Letter: W
Question
what is deltaG^0' for the transfer of 2 electrons from ferredoxin red to NADP^+ at 25°C? Does this reaction release or store energy? please solve and explain through steps.
Standard redox potential (E) for redox couples involved in photosynthesis and respiration Reductant/Oxidant Ferredoxin red/ox NADH + H'NAD +2H NADPH+H' NADP+2H FADH-/FAD +2H Succinate/fumarate Ubiquinone red/ox - 0.43 0.42 - 0.32 0.32 - 0.22 +0.03 +0.04 +0.22 +0.82 chrome oc 2H20/02 +4H olve the following probl l. What is 0", for the transfer of 2 electrons from ferredoxin red to NADP+ at 25°C? Does this reaction release or store energy?Explanation / Answer
dG = - n E F
dG = Free Energy Change, n = No. Of electrons Transferred (2), E = Change in Reduction Potential (-0.32 - (-0.43)= - 0.32 + 0.43 = 11) F = Farady Constant (96425)
dG = - (2) x 11 x 96425
dG = - 22 x 96425
Here dG value is - be. So the reaction is Spontaneous and release Energy.
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