InterviewSolution
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InterviewSolution
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The heat of formation of CO and CO2 are -26.4 kcal and -94 kcal, respectively. Heat of combustion of carbon monoxide will be (a) +26.4 kcal (b) -67.6 kcal (c) -120.6 kcal (d) +52.8 kcal |
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Answer» (b) -67.6 kcal CO(g) + O2(g) → CO2(g) ∆HC0 (CO) = [∆Hf (CO2) – ∆Hf(CO) + ∆Hf(O2)] ∆HC0 (CO) = -94 KCal – [- 26.4 KCal + 0] ∆HC0 (CO) = -94 KCal + 26.4 KCal ∆HC0 (CO) = -67.4 KCal |
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