Question

Write the chemical formula for petrol and diesel.

Answer 1

Chemical formula:

• Each constituent element is identified by its chemical symbol in a chemical formula, and the relative number of atoms in each element is indicated.
• These proportions in empirical equations begin with a key element and then allocate quantities of atoms of both of these elements in the compound by ratios to the key element.

Petrol:

• Petrol is a liquid combination derived from the petroleum source.
• This liquid mixture contains predominantly aliphatic hydrocarbons and is enhanced by the inclusion of aromatic hydrocarbons such as toluene, iso-octane, or benzene.
• Aromatic hydrocarbons raise their octane ratings, which are a measure of a fuel's ability to resist knock, which occurs when an engine's cylinder ignites prematurely, further damaging the engine.
• Petrol is made up of hydrocarbons. Hydrocarbons now have $5\mathrm{to}12$ carbon atoms per molecule.
• Petrol has a basic chemical formula because it is a mixture of several compounds that are blended as needed.
• As a result, its usual chemical formula is ${\mathrm{C}}_{\mathrm{n}}{\mathrm{H}}_{2\mathrm{n}+2}$.

Diesel:

• Diesel is likewise derived from a petroleum source.
• It's also utilised as a fuel in diesel engines.
• Rudolf Diesel, an engineer, invented diesel engines. It is also used in liquid form, as we have seen.
• When we fractionally distil petroleum fuel oil, we get diesel, which is the most prevalent sort of diesel.
• Diesel is also a blend of several hydrocarbons (aliphatic or aromatic).
• Diesel is made up of $25\%$ aromatic hydrocarbons like alkyl benzenes and naphthalene and $75\%$ saturated hydrocarbons like paraffin.
• It has a chemical formula that ranges from ${\mathrm{C}}_{10}{\mathrm{H}}_{20}\mathrm{to}{\mathrm{C}}_{15}{\mathrm{H}}_{28}$