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combustion and expansion

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Meta Hirthe

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Q: In which step of the four-stroke engine cycle does the heat from the combustion reaction causes the pistons to move?
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What causes the crankshaft to move?

The pistons, which in turned are moved by the expansion of gases caused by the combustion of fuel.


What causes an increase of speed in a combustion reaction?

There are three things needed for combustion: heat, oxygen, and fuel. After the reaction has started, the production of heat may fuel the reaction, making it self sustaining.


What does oxygen react with that causes an combustion?

hydrocarbon


What burns quickly and powers vehicles?

Petroleum distillates. Gas causes a combustion reaction in cars to produce energy.


How are explosions different from other chemical reactions?

Yes, combustion is a chemical reaction, because it is a reaction between a molecule and oxygen (O2) to produce a new molecule plus CO2 (if it's a complete combustion) or CO (if it is an incomplete combustion). Combustion is also an exothermic reaction, which means that heat is released.


What is meant by the term internal combustion engine?

An internal combustion engine is where the pistons open up, gas goes in them and then they close. The pressure causes an explosive reaction from the gas. That reaction moves the piston up and down. The piston is connected to the transmission and drive train. The transmission is connected to the wheels and when the piston moves the transmission moves and so on. When the piston opens up again, the old gas leaves through the exhaust pipe and new gas goes into the piston repeating the cycle over and over again.


What causes the forward motion of a rocket?

The force of the combustion pushes on the interior of the rocket. The combustion releases through the rear exhaust, causing the rocket to move forward.


What causes oil in the exhaust?

Broke rings on pistons


Explain why complete combustion is desirable?

The advantages of a complete combustion reaction are that they don't release as harmful toxic pollutants. In an incomplete combustion Carbon dioxide, carbon monoxide and carbon is released. A complete combustion only releases carbon dioxide.


What are the causes of combustion?

Heat, an oxidant and a fuel.


What are causes of combustion?

Heat, an oxidant and a fuel.


What is it that makes a car engine work?

Combustion is the chemical reaction that causes a car engine to work. It is produced by fuel combining with oxygen which causes pressure and heat to turn the crankshaft of the engine. This essentially gets all of the parts of the engine moving.