Question
Chemistry Question on Hydrocarbons
The bond enthalpies for C-H, C1-C1, C-C1 and H-Cl are 99, 58, 78 and 103 kcal/mol respectively. What will be the AH for the reaction
CH4(g) + Cl2(g) → CH3Cl(g) + HCl(g)
A
-24 kcal
B
26 kcal
C
-23 kcal
D
-32 kcal
Answer
-24 kcal
Explanation
Solution
The correct option is(A):-24 kcal.