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DeltaH combustion for CH(4),C(2)H(6), an...

`DeltaH` combustion for `CH_(4),C_(2)H_(6)`, and `C_(3)H_(8)` are `-210.8,-368.4` and `-526.3 kcal mol^(-1)`, respectively. Calculate `DeltaH` combustion for C8H16.

A

`-1310 kcal mol^(-1)`

B

`-684 kcal mol^(-1)`

C

`-840 kcal mol^(-1)`

D

`-1000 kcal mol^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
A
`CH_(4) + C_(2)H_(6) + C_(3)H_(6) rarr C_(6)H_(14)`
Product molecules has same number of C and H as the total number of C and H in reactant but has higher bond energy corresponding to extra bonds.
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