A summary of the CO and N₂ formed following irradiation of various ices at 10 K. The initial reactant for CO is the number of CO₂ monolayers before irradiation, and the initial reactant for N₂ is the number of NH₃ monolayers before irradiation. The panels show the hypervolatile yield relative to the initial CO₂ and NH₃ abundance (the top panel), to the consumed CO₂ and NH₃ (the second panel), to the final CO₂ and NH₃ abundance (the third panel), and to the abundance of water in the ice (the bottom panel).