If the amount of air in excess of the theoretical air is 6 kg, what percentage does it represent?

To determine the percentage of excess air in relation to the theoretical air, we first need to understand the concept of theoretical air. Theoretical air is the amount of air required for complete combustion of a fuel. Excess air is the additional air supplied beyond this theoretical amount to ensure complete combustion, usually to achieve a more efficient and cleaner burning process.

In this case, if the amount of excess air is 6 kg, we need to figure out how this value compares to the theoretical air. To calculate the percentage of excess air, the formula is:

[

\text{Percentage of Excess Air} = \left(\frac{\text{Excess Air}}{\text{Theoretical Air}} + 1\right) \times 100

]

If we assume that the theoretical air required in this scenario is also 6 kg — as indicated by the kind of answers being considered — the calculation would work as follows:

1. The total air (theoretical + excess) = theoretical air + excess air = 6 kg + 6 kg = 12 kg.

2. Excess air relative to the theoretical air = excess air / theoretical air = 6 kg / 6 kg = 1.

3. To express this as a percentage