The fresh feed to an ammonia production process contains N2 and H2 in stoichiometric proportion, along with an inert gas (I). The feed is combined with a recycle stream containing the same three species, and the combined stream is fed to a reactor in which a low single-pass conversion of N2 is achieved. The reactor effluent flows to a condenser. A liquid stream containing essentially all of the NH3 formed in the reactor and a gas stream containing all the inerts and the unreacted N2 and H2 leave the condenser. The gas stream is split into two fractions with the same composition: one is removed from the process as a purge stream, and the other is the recycle stream combined with the fresh feed. In every stream containing N2 and H2, the two species are in stoichiometric proportion. The mole fraction of inerts in the fresh feed is 0.01, the single-pass conversion of N2 (and H2) in the reactor is 0.2, and the fraction of gas leaving the condenser that is purged (mol purged/mol total) is 0.1. Taking a 1 mole fresh feed basis, find the composition of each stream in the process and the overall conversion of N2.