From the following bond energies : H $-$ H bond energy : 431.37 kJ mol$-$1 C $=$ C bond energy : 606.10 kJ mol$-$1 C $-$ C bond energy : 336.49 kJ mol$-$1 C $-$ H bond energy : 410.50 kJ mol$-$1 Enthalpy for the reaction, will be

Question

From the following bond energies :
H $-$ H bond energy   : 431.37 kJ mol^$-$1
C $=$ C bond energy   : 606.10 kJ mol^$-$1
C $-$ C bond energy   : 336.49 kJ mol^$-$1
C $-$ H bond energy   : 410.50 kJ mol^$-$1
Enthalpy for the reaction,

will be

$-$ 243.6 kJ mol^$-$1

$-$ 120.0 kJ mol^$-$1

553.0 kJ mol^$-$1

1523.6 kJ mol^$-$1

Solution

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