Question
Chemistry Question on Chemical bonding and molecular structure
Bond enthalpies of A2, B2 and AB are in the ratio 2 : 1 : 2. If bond enthalpy of formation of AB is -100 KJ mol-1. The bond enthalpy of B2 is
A
100 KJ mol-1
B
50 KJ mol-1
C
200 KJ mol-1
D
150 KJ mol-1
Answer
200 KJ mol-1
Explanation
Solution
The correct answer is (C) : 200 KJ mol-1.