Question

Nitrogen fixation is the
process by which nitrogen in
the atmosphere is reduced to
NH3 for use by organisms.
Several reactions are
associated with this process;
three are listed in the
following. Which of these are
spontaneous at 25°C? If a
reaction is not spontaneous, at
what temperature does it
become spontaneous? (a) AHO
298 (kcal/mol) is 8.0 and
AS•298 (cal/(mol)] is -14.4. (b)
AH: 298 (kcal/mol) is 21.6 and
AS-298 (cal/mol)] is 2.9. (c)
AH• 298 (kcal/mol) is -11.0 and
AS•298 [cal/mol)] is -23.7,​

Answer 1

Answer:

Nitrogen fixation, any natural or industrial process that causes free nitrogen (N2), which is a relatively inert gas plentiful in air, to combine chemically with other elements to form more-reactive nitrogen compounds such as ammonia, nitrates, or nitrites.