Question 4. A first-order reaction proceeds to a fractional conversion of 0.80 in a constant-density, isothermal PFR: A new engineer on your team who did not take CIIE372 with Prof. Keitz proposes to increase the conversion by arranging the piping as shown below. For the engineer's new design: (a) Calculate the fractional conversion leaving the reactor, relative to XA=0 for the stream entering the process. (b) Calculate the conversion in the stream leaving the process. (c) Depending on your answer to (B), why does the new process increase the conversion, or why does the new process decrease the conversion