Consider the biological reduction of molecular nitrogen, for which the following is the minimal reaction stoichiometry under optimal conditions (Pi = phosphate):
8H+ + 8e- + N2 + 16ATP → H2 + 2NH3 + 16ADP + 16Pi
What is the approximate ratio of Keq for this reaction and for the same reaction in the absence of ATP? Assume a body temperature of 37°C. Put your answer in scientific notation and round to two decimal places.