The Haber Process is used to make ammonia, NH3:
3 H2 (g) + N2 (g) ↔ 2 NH3 (g) + heat
Ammonia ranks in the top five of all chemicals in terms of total mass
produced. It is used to make fertilizer and explosives (e.g.- TNT).
Even though the Haber process has a very large Kc (5 X 108), the
reaction rate is virtually zero at room temperature and pressure. How
did Haber maximize the yield rate of production AND yield of
Fritz Haber was awarded the Nobel Prize in Chemistry in
1918, but the award was contested because Haber made it
possible for Germany to use mustard gas as a weapon during WWI.
Fritz Haber explaining the benefits of poison gas.
Haber was forced to leave Germany in 1933 because of
Nazi persecution of persons of Jewish ethnicity.