(Solved): Ethane (C2H6) is burned with atmospheric air. The analysis of the products on a dry basis is ...

Ethane $\left({\mathrm{C}}_2{\mathrm{H}}_6\right)$ is burned with atmospheric air. The analysis of the products on a dry basis is as follows by volume: ${\mathrm{CO}}_2$ is $10\%,{\mathrm{O}}_2$ is $3\%,\mathrm{CO}$ is $1\%,{\mathrm{N}}_2$ is $86\%$. a. Determine the combustion equation and check the balance of elements. b. Calculate the air-fuel ratio by volume and mass. (Molecular mass of dry air is $28.97\mathrm{kg}/\mathrm{kmol}$ ) c. Calculate percent excess air