Chemical Thermodynamics Question 472
Question: The polymerization of ethylene to linear polyethylene is represented by the reaction when ’n’ has a large integral value. Given that average enthalpies of bond dissociation for and at 298 K are + 590 and respectively. Then the enthalpy of polymerization/mol of ethylene at298 K is
Options:
A) - 132 kJ
B) - 72 kJ
C) + 80 kJ
D) + 162 kJ
Show Answer
Answer:
Correct Answer: B
Solution:
Thus, ’n’ double bonds are dissociated to form a molecule with 2n single bonds.