How is the rate of disappearance of ozone related to the rate of appearance of oxygen in the following equation? 2O3 (g) → 3O2 (g) If the rate of appearance of O2 , Δ[O2 ] /ΔT, is 60. x 10-5 M/s at a particular instant. a. What is the rate expression. b.what is the value of the rate of disappearance of O3 , Δ[O3 ] /ΔT, at this same time?