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GATE BT concept:reduction-reactions PYQs

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Question 34

Open question
BTNAT1 markNeeds review
Given below is the Gibbs free energy change (ΔG) in kilo Joules per electron equivalent (kJ e⁻eq⁻¹) at pH 7.0, of organic and inorganic half reactions.
Acetate synthesis:

 ΔG=27.4 kJ e⁻eq⁻¹
Reduction reaction:

 ΔG = -78.72 kJ e⁻eq⁻¹
The free energy change of acetate oxidation to CO₂, H₂O and HCO₃⁻ is _____ kJ e⁻eq⁻¹. (rounded off to two decimal places)

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