The oxidation of SO2to SO3is catalyzed byNO2. The reaction proceeds as follows:NO2(g) + SO2(g) –> NO (g) + SO3(g)2 NO (g) + O2(g) –> 2 NO2(g)a) Show that the two reaction can be summedto give the overall oxidation of SO2by O2togive SO3.b) Why do we consider NO2a catalyst and notan intermediate in the reaction?c) Is this an example of a homogeneous orheterogeneous catalyst?
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