MCQ
Which of the following reaction can be used to define the heat of formation of $C{O_2}(g)$
- ✓$C{\rm{(graphite)}} + {O_2}(g) = C{O_2}(g)$
- B$C{H_4}(g) + 2{O_2}(g) = C{O_2}(g) + 2{H_2}O(l)$
- C$CO(g) + \frac{1}{2}{O_2}(g) = C{O_2}(g)$
- D${C_6}{H_6}(l) + 7\frac{1}{2}{O_2}(g) = 6C{O_2} + 3{H_2}O(l)$