1. Reactant A is undergoing two parallel reactions on a catalyst surface:

A B, elementary, irreversible (1)

A C, elementary, reversible (2)

From experimental data, we have determined that all of the species are strongly adsorbed on the catalyst surface. For Reaction 1, the desorption of B is rate-limiting. For Reaction 2, The surface reaction is rate-limiting.

1. Derive the rate laws for A (rA'), B (rB'), and C (rC').
2. Also sketch what you would expect for the overall selectivity and overall yield vs. reactor residence time to look like for a reaction scheme like this if your preferred product is B.