# How do we represent the combustion of gasoline?

Mar 1, 2017

Well, first you must define $\text{gasoline....}$

#### Explanation:

As far as I know, gasoline is composed of isomeric $\text{octane}$.

And to balance any combustion reaction, garbage in must equal garbage out.

${C}_{8} {H}_{18} \left(l\right) + \frac{25}{2} {O}_{2} \rightarrow 8 C {O}_{2} \left(g\right) + 9 {H}_{2} O \left(l\right)$

Is this balanced? We could represent incomplete combustion by the reaction:

${C}_{8} {H}_{18} \left(l\right) + 11 {O}_{2} \left(g\right) \rightarrow 6 C {O}_{2} \left(g\right) + C \left(s\right) + C O \left(g\right) + 9 {H}_{2} O \left(l\right)$

Of course, we have to establish the extent of carbon monoxide and particulate carbon by analysis; here some of the carbon is oxidized incompletely.