Top panels: number densities of carbon atoms in CH (solid lines) and CO (dashed-dot lines), relative to the total number of carbon atoms (left panel), and the number densities of oxygen atoms in OH (solid lines) and CO (dashed-dot lines), relative to the total number of oxygen atoms (right panel). Bottom panels: CH (solid lines) and CO (dashed-dot lines) temperature sensitivities (left panel), and OH (solid lines) and CO (dashed-dot lines) temperature sensitivities (right panel). Figures depicting CH (left panels) have been computed assuming A(C) = 6.0 with 5.0 ≤ A(O) ≤ 7.0. Figures depicting OH (right panels) have been computed assuming A(O) = 6.0 with 5.0 ≤ A(C) ≤ 7.0.