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1. |
The combustion equations of carbon and carbon monoxide are as follows: C + O2 = CO2, ΔH = – 394 kJ/kg .mole CO + ½ 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 | |