A solution 0.20 molar in monomer (styrene) and 4.0 X 10-3 M in benzoyl peroxide initiator is heated at 60°C. kp = 145 liter/mole-sec, kt = 7.0 X 107 liter/mole-sec, f = 1, and the initiator half-life is 44 hr.

a) Draw the structure of the final polymer. (5 pts)

b) Draw the reaction mechanism for the polymerization including chemical structures formed in each of the three critical steps. (15 pts)

c) How long will it take to achieve 50% conversion? (20 pts)

A100 kmol/h stream that is 97 mole% carbon tetrachloride (ccl4) and 3% carbon disulfide (cs2) is to be recovered from the bottom of a distillation column. the feed to the column is 16 mole% cs2 and 84% ccl4, and 2% of the ccl4 entering the column is contained in the overhead stream leaving the top of the column. calculate the mass and mole fractions of ccl4 in the overhead stream, and determine the molar flow rates of ccl4 and cs2 in the overhead and feed streams. 12. mw_ccla- 153.82; mw_cs2-76.14.