Do please

(a) Calculate the gain of transfer function if the feed flow rate to the reactor changes suddenly from 1 to 1.2 kg/s, the reactor contents temperature initially at 100 C, changes eventually to 105 C. (b) If the resulting response as shown in figure below, what is the complete process transfer function? 107C 105C 100C -210 sec Time (4) (c) Calculate the raise time