Question

Explain the probable mechanism of smog forming reaction

Answer 1

A model is developed to account for the chemical features of photochemical smog observed in laboratory and atmospheric studies. A detailed mechanism consisting of some 60 reactions is proposed for a prototype smog system, the photooxidation in air of propylene in the presence of oxides of nitrogen at low concentrations. The rate equations for this detailed mechanism have been numerically integrated to calculate the time—concentration behavior of all the constituents of the system. The model has been used to examine the effects of varying relative and absolute concentrations of the reactants. The conclusions of this examination provide a framework for the analysis of the more complicated atmospheric problem. Some of the key questions related to the atmospheric chemistry have been discussed in terms of the detailed model