Additional Problem #4: A convenient laboratory technique for determining the kinetics of gas phase reactions involves using a constant volume isothermal vessel and measuring pressure changes with time. The container can be modeled as a batch reactor. Use the data below to determine the rate constant for the first-order decomposition of di-t-butyl peroxide. (CH3)3COO(CH3)3 + 2(CH3)2CO + C2H6 r = kCA Time (min) Total Pressure (mm Hg) 173.5 187.3 193.4 205.3 211.3 222.9 228.6 239.8 244.4 254.5 259.2 268.7 273.9 282.0 286.8 12 14 15 17 18 20 21