Write two differences between homogeneous catalysis and heterogeneous catalysis.

Explanation

The catalysis in which the state catalyst is in same phase as the reactants is called homogeneous catalysis. For example.
`2SO_2 (g) + O_2 (g) overset(NO(g))hArr 2SO_3 (s)`
The catalysis in which the catalyst is in different from that of the reactants is called heterogeneous catalysis. For example
`2SO_2 (g) + O_2 (g) overset(V_2 O_5)hArr 2SO_3 (g)`