16-Chem-A4, Chemical Reactor Engineering December 2017 QUESTION S The gas-phase reaction 2AA2 was carried out at a temperature of 325 °C and constant volume. Measurements of the total pressure as the reaction proceeds gave the following data: Time (min) Total Pressure (kPa) 0 84.25 10 78.91 20 74.45 30 71.12 40 68.52 50 66.25 60 64.52 70 63.05 80 61.72 A rate equation of the form-dP/dT KP" is assumed, where P is the partial pressure of A, k is the reaction rate constant and n is the order of the reaction. Determine the values of k and n