4O2)/mol, and 0.59 mol linoleic acid (C18H32O2)/mol. To create margarine from sunflower oil, the liquid oleic and linoleic acids are hydrogenated in the presence of a metal catalyst to form solid stearic acid. At a margarine production facility, a stream of 335.0 mol sunflower oil/hr is fed into a reactor. The fresh hydrogen source available is a mixture containing 0.95 mol H2/mol and 0.050 mol N2/mol. (N2 is inert in this process.) To insure complete hydrogenation, the hydrogen gas mixture is introduced into the reactor in 65.0% excess. All reaction products leave the reactor and proceed to a separator where palmitic and stearic acids are separated from the hydrogen gas mixture. The hydrogen gas mixture is recycled to the fresh feed stream, and 140.0 mol gas/hr of this recycle stream is purged to prevent the buildup of nitrogen gas. What is the composition of the purge stream?
