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How much energy is released when 6 mole ...

How much energy is released when 6 mole of octane is burnt in ? Given that the heat of form action of `CO_(2), H_(2)O` and `C_(8)H_(18)` respectively are -390, -240, and +160 KJ/mole.

A

`-32.6` MJ

B

`-37.4` MJ

C

`-35.5` MJ

D

`-20.0` MJ

Text Solution

Verified by Experts

The correct Answer is:
A
`C_(8)H_(18)+(25)/(2)O_(2)rarr8CO_(2)+9H_(2)O`
`DeltaH=H_(P)-H_(R)`
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