20- One mole of carbonundergoes incomplete combustion to produce carbon monoxide- Calculate-AH- - for the formation of CO at 298 KGiven R-8314 JK-1 mol-1

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Standard X

Chemistry

Chemical Properties of Alkanes

20. One mole ...

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20. One mole of carbonundergoes incomplete combustion to produce carbon monoxide. Calculate(AH-Δ ) for the formation of CO at 298 KGiven R-8314 JK-1 mol-1

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Q. Incomplete combustion of carbon is due to insufficient amount of air (oxygen) and leads to the formation of carbon monoxide (CO).

The enthalpies of combustion of carbon and carbon monoxide are $- 393.5$ and $- 283$ kJ mol $^{- 1}$ respectively. The enthalpy of formation of carbon monoxide per mole is:

Q. The enthalpies of combustion of carbon and carbon monoxide are

393.5

and

- 283

k J {m o l}^{- 1}

respectively. The enthalpy of formation of carbon monoxide per mole is:

(Δ H - Δ U)

for the formation of carbon monoxide

(C O)

from its elements at

298 K

(R = 8.314 J K^{- 1} {mol}^{- 1})

Q. The enthalpies of combustion of Carbon and Carbon monoxide in excess of oxygen at

298 K

and constant pressure are

- 393.5

and

- 283.0 k J m o l^{- 1}

, respectively. Calculate the heat of formation of Carbon monoxide at constant volume.

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