For 10 points, name this process that combines one nitrogen gas molecule and three hydrogen gas molecules to produce ammonia, named for the winner of the 1918 Nobel Prize in Chemistry.
Osmium is the most efficient catalyst of this reaction, but is rarely used because of its cost. When the reactants are mixed at 250 atmospheres of pressure at over 450 degrees Celsius and either potassium or aluminum oxide is used as a promoter, this iron-catalyzed reaction produces yields of 10-20%. Its two reactants are usually derived from air and water, of which they are the primary constituents. For 10 points, name this process that combines one nitrogen gas molecule and three hydrogen gas molecules to produce ammonia, named for the winner of the 1918 Nobel Prize in Chemistry.
Osmium is the most efficient catalyst of this reaction, but is rarely used because of its cost.
{Haber}-Bosch process