What distinguishes LPG from other members of the family of petroleum hydrocarbons is.. Part 2

               Boiling (or vaporization)Gasoline

Gasoline, kerosene, diesel oil and other similar hydrocarbons are normally liquids at atmospheric pressure and temperature. To make them boil and vaporize requires the application of considerable heat.

                                                                 Gasoline:

Gasoline is a hydrocarbon. When you put gas in your car, the gas enters the combustion chamber and is combined with air. The air molecule will collide with the gasoline molecule, causing it to split into one hydrogen atom and one carbon atom. The combination of these two elements creates water vapor, which has a much lower boiling point than gasoline so it quickly evaporates.

Rudolf Diesel 

Rudolf Diesel invented the compression ignition engine in 1897. Shortly thereafter, advances in the refining industry produced gasoline. But not in its modern form. Back then, gasoline was basically a derivative of kerosene, a waste byproduct of early oil refining. It was considered a nuisance and was disposed of by being dumped onto the ground or into rivers.

Soon, however, inventors recognized that gasoline's high energy potential made it an ideal fuel, something that could advance engine development. There was a problem, though: Gasoline does not burn in liquid form. It needs to be atomized, emulsified and vaporized to ignite. This means it must be broken down into small particles, be mixed with air, and undergo a phase change through heat. The carburetor's job is to accomplish the first two steps, while a process called the latent heat of vaporization takes credit for the last step.

One property of gasoline is that the more heat it is exposed to, the more volatile its vapors become. In order to use gasoline as a fuel for an internal combustion engine, something had to heat it, forcing it into a vapor phase. That something is the carburetor.

Gasoline vaporizes at 140 degrees.

The fumes are capable of ignition up to12 feet away from a pooled source. It can float on water and may spread long distances, making ignition and flash back possible. Gasoline may ignite from a nearby spark, flame, or even static electricity.