20f4 Problem 2: The amount of mass transported via a pipe over a period of time can be computed as Where M = mass (mg), t] = initial time (min), t; = the nal time (min) and c(t) = concentration (mgfms). The ow rate Q can be computed as: Q = 9 + 480'05t2 And the concentration was measured at different times from 0 to 15 min as in table below: Time 0 1 2 ' 5 8 11 15 (min) C(t), 3' 5.4 4.5 ' 4.6 6.7 10.4 19 mg/m3