The polymerisation of propene to linear polypropene is represented by the reaction:where n has a large integral value. The average enthalpies of bond dissociation for (C=C) and (C−C) at 298 K are +590 and +331 kJmol−1, respectively. The enthalpy of polymerisation is−360 kJmol−1. Find the value of n.

The polymerisation of propene to linear polypropene is represented by

1.	The polymerisation of propene to linear polypropene is represented by the reaction:where n has a large integral value. The average enthalpies of bond dissociation for (C=C) and (C−C) at 298 K are +590 and +331 kJmol−1, respectively. The enthalpy of polymerisation is−360 kJmol−1. Find the value of n.
Answer» The polymerisation of propene to linear polypropene is represented by the reaction: where n has a large integral value. The average enthalpies of bond dissociation for $(C = C)$ and $(C - C)$ at 298 K are +590 and $+ 331 {kJmol}^{- 1}$ , respectively. The enthalpy of polymerisation is $- 360 {kJmol}^{- 1}$ . Find the value of n.