Chemical Thermodynamics Question 422
Question: Which one of the following bonds has the highest average bond energy (kcal/mol) [CPMT 1994]
Options:
A) $ S=O $
B) $ C\equiv C $
C) $ C\equiv N $
D) $ N\equiv N $
Show Answer
Answer:
Correct Answer: D
Solution:
B.E of S=O,C≡C,C≡N and N≡N are 523,839,891 and 941 kJ mol$^{-1}$ respectively.Thus, among the given molecules, N≡N has the highest bond energy.