1. The reaction 2A-> B + C is considered to be a 3rd order reaction in A with the following rate expression. r = kC³ (A) Derive an expression for how

the concentration of A changes with time. (B) Given a rate constant of 0.005 L²/(mol² min) and an initial concentration of A of 2 mol/L plot the concentration of A of vs time for 3 hours.