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The enthalpies of combustion of carbon a...

The enthalpies of combustion of carbon and carbond monoxide are `-393.5` and `-283kJ mol^(-1)` respectively . The enthalpy of formation of carbond monoxide per mole is `:`

A

` 1 1 0 K J`

B

` 6 7 6 . 5 K J`

C

`- 6 7 6 . 5 K J`

D

`1 1 0.5 K J`

Text Solution

Verified by Experts

The correct Answer is:
A
`{:(C + O_(2) to CO_(2) ,, Delta H = -393.5 kJ),(CO + 1/2 O_(2) to CO_(2),, Delta H = -283.5kJ),(-" "-, - " "+):}/(C + 1/2 O_(2) to CO,, Delta H = -110 kJ)`
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