The combustion equations of carbon and carbon monoxide are as follows:C + O₂ =

Question

The combustion equations of carbon and carbon monoxide are as follows:C + O₂ = CO₂, ΔH = - 394 kJ/kg . mole CO + 1/2 O₂ = CO₂, ΔH = - 284.5 kJ/kg. mole. The heat of formation of CO is __________ kJ/kg. mole.

Options:

A . -109.5

B . +109.5

C . +180

D . +100

Answer: Option A

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