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Postad: 2 maj 2021 19:52

Biokemi

Calculate the standard free energy change associated with reduction of cytochrome c by NADH.Write down the different steps of your calculation.

 

½ O2 + 2H+ + 2e- --> H2O   = +0.82

Succinate + CO2 + 2e- --> alfa-ketoglutarate    = -0,67

 

Balanced rxn: ½O2 + 2H+ + 2e- --> 2H2O   = +0.82

So full = ½O2 + 2H+ + succinate + CO2 --> 2H2O   + alfa-ketoglutarate

G°= -nFE0

(-2 * 96.48kj/molV * +0.82) – (-2*96.48kj/molV* -0.67)

=  -158.2272 – 129.2832 = -287.5104kj/mol

 

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