1.

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.$

A. -109.5
B. 109.5
C. 180
D. 100
Answer» B. 109.5


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