Below are the paired reduction reactions for chemolithotrophic denitrification: these organisms are using nitrate as an electron accepter and are using hydrogen gas as a source of energy and electrons.

• 2NO₃^- + 10e^- -> N₂ (+0.74 volts)
• 2H⁺ + 2e^- -> H₂ (-0.42 volts)

Using the information given, calculate the E for this reaction, balance the full reaction to determine n, the number of electrons transfered when 367 moles of H₂ are oxidized. Finally, use the simplified Nernst Equation to determine the Gibbs Free energy available to do work!

G = -nFE, where F = 96.5 kJ (e^- V)^-1

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