628. The preparation of styrene (C8H8) and benzene (C6H6) from acetylene (C2H2 ) has been considered by Tanaka et al. (1955). and for this system a visual representation of the atomic matrix is given by MolecularSpecies --> C2H2 C6H6 C8H8

carbon 2 6 8

oxygen 2 6 8

Determine the rank of the atomic matrix and use the pivot theorem to represent the rate of production of the nonpivot species in terms of the rate of production of the pivot species.