Question
The dissociation energy of CH4 is 400 Kcal mol−1 and that of ethane is 670 Kcal mol−1. The C - C bond energy is.
Answer: Option B
:
B
CH4 has 4 C - H bonds
∴ Energy needed to break a single C - H bond is 4004= 100 Kcal
C2H6 has 6 C - H bonds
∴ The C - C bond energy can be given by
670 Kcal - 6 × 100 Kcal = 70 Kcal
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:
B
CH4 has 4 C - H bonds
∴ Energy needed to break a single C - H bond is 4004= 100 Kcal
C2H6 has 6 C - H bonds
∴ The C - C bond energy can be given by
670 Kcal - 6 × 100 Kcal = 70 Kcal
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