2. Styrene is polymerized by free radical mechanism in solution. The initial monomer and initiator concentrations are 1 M and 1 mM, respectively. At the polymerization temperature of 60 C, the initiator efficacy is 0.30. The rate constants at this temperature are: kd = 1.210-5 s-1 ; kp = 176 M-1 s-1; kt = 7.0107 M-1 s-1, where M stands for mole/liter, s stands for seconds. Given this information, find the: a) Rate of initiation at 1 min and at 17 h. b) The system reaches at steady-state at 1 min, what is the monomer-ended free-radical concentration at 1 min. c) Rate of propagation at 1 min. d) Average free-radical lifetime at 1 min, where lifetime is defined as the radical concentration divided by the rate of termination.

2. Styrene is polymerized by free radical mechanism in solution. The initial monomer and initiator concentrations are 1 M and 1 mM, respectively. At the polymerization temperature of 60 C, the initiator efficacy is 0.30. The rate constants at this temperature are: ka = 1.2x10-55-1 ; kp = 176 M/s1; kt = 7.0x10'M's-1, where M stands for mole/liter, s stands for seconds. Given this information, find the: = > a) Rate of initiation at 1 min and at 17 h. b) The system reaches at steady-state at 1 min, what is the monomer-ended free-radical concentration at 1 min. c) Rate of propagation at 1 min. d) Average free-radical lifetime at 1 min, where lifetime is defined as the radical concentration divided by the rate of termination