Question

The succinate dehydrogenase complex couples the oxidation of succinate to the reduction of ubiquinone (Q) according to the following equation. succinate + Q --> fumarate + QH2 Given that E'° for the fumarate/succinate redox pair is + 0.031V and E'° for the Q/QH2 redox pair is + 0.045V, calculate the standard free energy change (?G'°) for the oxidation of succinate by ubiquinone. ?G'° = + 2.7 kJ/mol ?G'° = + 1.35 kJ/mol ?G'° = - 2.7 kJ/mol ?G'° = - 280 kJ/mol ?G'° = - 1.35 kJ/mol

          The succinate dehydrogenase complex couples the oxidation of succinate to the reduction of ubiquinone (Q) according to the following equation.

succinate + Q --> fumarate + QH2

Given that E'° for the fumarate/succinate redox pair is + 0.031V and E'° for the Q/QH2 redox pair is + 0.045V, calculate the standard free energy change (?G'°) for the oxidation of succinate by ubiquinone.

?G'° = + 2.7 kJ/mol
?G'° = + 1.35 kJ/mol
?G'° = - 2.7 kJ/mol
?G'° = - 280 kJ/mol
?G'° = - 1.35 kJ/mol

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The succinate dehydrogenase complex couples the oxidation of succinate to the reduction of ubiquinone (Q) according to the following equation.

succinate + Q –> fumarate + QH2

Given that E'° for the fumarate/succinate redox pair is + 0.031V and E'° for the Q/QH2 redox pair is + 0.045V, calculate the standard free energy change (?G'°) for the oxidation of succinate by ubiquinone.

?G'° = + 2.7 kJ/mol
?G'° = + 1.35 kJ/mol
?G'° = - 2.7 kJ/mol
?G'° = - 280 kJ/mol
?G'° = - 1.35 kJ/mol

Added by Adrienne C.

Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

Instant Answer

Solved by Expert Kranti S

01/14/2022

Step 1

045V - 0.031V E°cell = 0.014V Show more…

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The succinate dehydrogenase complex couples the oxidation of succinate to the reduction of ubiquinone (Q) according to the following equation: succinate + Q -> fumarate + QH2. Given that E'° for the fumarate/succinate redox pair is + 0.031V and E'° for the Q/QH2 redox pair is + 0.045V, calculate the standard free energy change (ΔG'°) for the oxidation of succinate by ubiquinone.

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