Carbon-to-oxygen ratio (C/O) in terminator slices representation: top left: C/O after cloud formation as in Paper I according to ɛ_C∕ɛ_O, top right: C/O for initial condition of gas-kinetic calculations (from CH, CO, CO₂, C₂ H₂, etc. Bottom left: C/O at end of gas-kinetic calculation (t = 300 yr), bottom right: C/O change between initial condition (top right) and final gas-kinetic solution (bottom left). See Fig. 10 for terminator slice representation.