The following reactions take place in a batch reactor: A B

Chapter 2, Problem 2.36

(choose chapter or problem)

The following reactions take place in a batch reactor: A B ! C desired product B C ! D hazardous product As the reaction proceeds, D builds up in the reactor and could cause an explosion if its concentration exceeds 15 mol/L. To ensure the safety of the plant personnel, the reaction is quenched (e.g., by cooling the reactor contents to a low temperature) and the products are extracted when the concentration of D reaches 10 mol/L. The concentration of C is measured in real-time, and samples are periodically taken and analyzed to determine the concentration of D. The data are shown below: CC (mol/L) CD (mol/L) 2.8 1.4 10 2.27 20 2.95 40 3.84 70 4.74 110 5.63 160 6.49 220 7.32 (a) What would be the general form of an expression for CD as a function of CC? (b) Derive the expression. (c) At what concentration of C is the reactor stopped? (d) Someone proposed not stopping the reaction until CD 13 mol/L, and someone else strongly objected. What would be the major arguments for and against that proposal?