(20P) 1. A reversible first-order reaction takes place in a batch reactor. The initial concentration of A is 2 mol/L and there is no R(CRO=0). Ak2k1R If the concentration of A is determined as 1.2mol/L after 15 minutes, define the rate equation (rA) for this reaction. You can take the equilibrium conversion as 0.7 for the given reaction conditions