`C(s) + O_2(g) to CO_2(g) + 394kJ`
`C (s) + 1/2 O_2(g) to CO + 111 kJ`
Calculate the heat generated if efficiency of oven is 10.8% and a fully efficient oven converts all the carbon to `CO_2`

Explanation

To solve the problem, we need to calculate the heat generated when carbon is combusted in an oven with an efficiency of 10.8%. We will consider both complete combustion to carbon dioxide (CO₂) and incomplete combustion to carbon monoxide (CO).

### Step-by-Step Solution:

1. **Identify the reactions and their heat changes:**
- Complete combustion of carbon:
\[
C(s) + O_2(g) \rightarrow CO_2(g) + 394 \text{ kJ}
...