MCQ
Carbon and carbon monoxide burn in oxygen to form carbon dioxide according to the following reactions
$C + {O_2} \to C{O_2};\,\Delta H = - 394\,kJ\,mo{l^{ - 1}}$
$2CO + {O_2} \to 2C{O_2};\,\Delta H = - 569\,kJ\,mo{l^{ - 1}}$ The heat of formation of $1\,mol$ of carbon monoxide is thus .....$kJ\,mo{l^{ - 1}}$
- A$ - 219$
- ✓$ - 109.5$
- C$ - 175$
- D$ - 87.5$
