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1. |
The combustion equations of carbon and carbon monoxide are as follows:C + O = CO, ΔH = - 394 kJ/kg . mole CO + 1/2 O = CO, 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 | |