Given that `Cu_(4)(g) +360 kJ rarr C(g) +4H(g)` `C_(2)H_(6)(g) +620 kJ rarr 2C(g) +6H(g)` The value of `C-C` bond enegry isA. `260 kJ mol^(-1)`B. `180 kJ mol^(-1)`C. `130 kJ mol^(-1)`D. `80 kJ mol^(-1)`

Given that `Cu_(4)(g) +360 kJ rarr C(g) +4H(g)` `C_(2)H_(6)(g) +620 kJ

1.	Given that `Cu_(4)(g) +360 kJ rarr C(g) +4H(g)` `C_(2)H_(6)(g) +620 kJ rarr 2C(g) +6H(g)` The value of `C-C` bond enegry isA. `260 kJ mol^(-1)`B. `180 kJ mol^(-1)`C. `130 kJ mol^(-1)`D. `80 kJ mol^(-1)`
Answer» `CH_(4)rarr C(g) +4H(g),DeltaH = 360 kJ` `C_(2)H_(6)rarr 2C(g)+6H(g), DeltaH = 620 kJ` `:. DeltaH_(C-C) = (DeltaH_(C_(2)H_(6))-6DeltaH_(H)) = 80 kcal mol^(-1)`

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Given that `Cu_(4)(g) +360 kJ rarr C(g) +4H(g)` `C_(2)H_(6)(g) +620 kJ rarr 2C(g) +6H(g)` The value of `C-C` bond enegry isA. `260 kJ mol^(-1)`B. `180 kJ mol^(-1)`C. `130 kJ mol^(-1)`D. `80 kJ mol^(-1)`

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