Question

The heat of formation of CO and CO2 are – 26.4 kCal and – 94 kCal, respectively. Heat of combus-tion of carbon monoxide will be

Answer 1

QUESTiON

• The heat of formation of CO and CO2 are – 26.4 kCal and – 94 kCal, respectively. Heat of combus-tion of carbon monoxide will be

AÑSWER

• – 67.6 kcal

SOLUTiON

$\sf \: CO (g )+1/2O_2 (g )→CO_ 2 (g) \\ \\ \sf \: ΔHC0_ { (CO) }= ΔHf _ {(CO_2) }– ΔHf_ {(CO) }+ ΔHf_ { (O_2)} \\ \\ \sfΔHC0_ { (CO) } = – 94 KCal \: \: – \: \: [– 26.4 \: KCal \: + \: 0] \\ \\ \sf ΔHC0_ { (CO) } = – 94 KCal + 26.4 \: KCal \\ \\ \bf \blue{ ΔHC0_ { (CO) } = – 67.4 Kcal}$

Answer 2

Explanation:

The heat of formation of CO(g) and CO_(2)(g) are -26.4 kcal and -94.0 kcal respectively. The heat of of combustion of carbon monoxide will be. Step by step solution by experts to help you in doubt clearance & scoring excellent marks in exams. =-94.0-(-26.4)=-67.6kcal.