How Fuel Burns in an Engine

By: Hunter Terhark and Cheyenne

Chemical reactions found in the engine

In a normal injection engine fuel is pumped into the cylinder and ignited by the spark plug

this reacts as combustion and the energy given off by the combustion of gasoline moves the pistons causing the wheels to move.

How Cars Burn Gasoline: "Down the Gasoline Trail" 1935 General Motors 8min

The after product

Hydrocarbon (gasoline) when burned is converted into carbon dioxide and water vapor, this is thrown out of the exhaust pipe, however not every hydrocarbon is burned, some slips through

How burning of Gas is Harmful for the Environment (chemical reaction)

Consider a single molecule of Octane (a typical hydrocarbon found in gas) known as C8 H18

when it is mixed with oxygen, you have the ingredients for 8 molecules of carbon dioxide and and nine molecules of water, this weighs about 3 times the weight of the original octane molecule, not only in the burning process but the process of making gasoline with crude oil can kill wildlife in oil spills.

Endothermic or Exothermic?

The burning of gasoline in the engine is endothermic because the energy that is used to propel the car being used

Why our chemical reaction is essential and who is effected by it

The burning of gasoline is essential for cars to move, however some companies are working on steam powered cars by the heating of water and the movement of steam to push pistons rather than the igniting of gasoline, the people effected by this reaction is nearly everyone in the world, transportation is dependent on the use of gasoline in the common engine
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