Combustion reactions

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COMBUSTION REACTIONS : 

COMBUSTION REACTIONS By: Tayyba Khan

What are the different types of chemical reactions? : 

What are the different types of chemical reactions? Synthesis Combustion Acid-base Single displacement Double displacement Decomposition Website: http://crperiod2.edublogs.org/

What is a combustion reaction? : 

What is a combustion reaction? A combustion reaction takes place when a fuel and an oxidant react, producing heat or heat and light. Ex. Flame Website: http://www.britannica.com/EBchecked/topic/127367/combustion

What is the fire triangle? : 

What is the fire triangle? The fire triangle is oxygen, fuel and heat. Website: http://ehs.sc.edu/modules/fire/01_triangle.htm

What is activation energy? : 

What is activation energy? The energy needed to get a reaction started. Websites: http://wiki.answers.com/Q/What_is_activation_energy https://chemistry.twu.edu/tutorial/ActivationEnergySum.html

Why is heat/energy a necessary part of the fire triangle? : 

Why is heat/energy a necessary part of the fire triangle? You need enough heat to raise the material to its ignition temperature. Websites: http://ehs.sc.edu/modules/fire/01_triangle.htm http://www.campfiredude.com/campfire-physics.shtml

How is the cooktop of your stove a real-life example of a fire triangle? : 

How is the cooktop of your stove a real-life example of a fire triangle? The stove uses heat, oxygen and energy to cook the food you put on it. Website: http://www.nakedauthors.com/2009/08/little-things.html

What is a combustion engine? : 

What is a combustion engine? An engine in which the combustion of a fuel occurs with an oxidiser which is usually air. Website: http://en.wikipedia.org/wiki/Combustion_Engine http://www.physics.byu.edu/faculty/rees/360/Four_stroke_cycle_compression.jpg

How does a combustion engine work? : 

How does a combustion engine work? Two kinds: internal and external combustion engines. Fuel is burned inside of the engine in a combustion chamber. Gasoline then expands, creating energy. The more compressed the mixture of air and fuel, the greater risk of it burning into flames. Websites: http://swreedy.files.wordpress.com/2009/02/combustion.jpg

In terms of combustion, how are nascar engines different from street car engines that allow them to operate at much higher speeds? : 

In terms of combustion, how are nascar engines different from street car engines that allow them to operate at much higher speeds? NASCAR engines-NASCAR cars are handmade. The bodies are built from flat sheet metal. It has more combustions which then makes it go much faster. Car engines- their engines are smaller and doesn’t go as fast as NASCAR cars. It Has mufflers, and it doesn’t need nitrous oxide. Websites: http://auto.howstuffworks.com/auto-racing/nascar/nascar-basics/nascar.htm http://library.thinkquest.org/05aug/00111/nascar_thinkquest1.htm

How does nitrous oxide help engines perform better? : 

How does nitrous oxide help engines perform better? By having more oxygen available during combustion. With more oxygen, more fuel can be injected and the engine can produce more power. Its just a simple way to give off horsepower. Website: http://damox.com/cars/toyota.htm

Cheating in nascar : 

Cheating in nascar Smokey Yunick, the greatest rule-bender in motorsports history, described as slipping past NASCAR inspectors as “walking under the snakes belly” and that was long before the rule book became the airtight list of guidelines it is today. Cheating is a time-honored racing tradition, but it rarely makes as many headlines as it did at this years Daytona 500. six Nextel cup teams got collared- including the cars of Michael Waltrip, Matt Kenseth and Kasey Kahne-resulting in 5 crew chief suspensions, 500 total points docked from drivers and owners and $250,000 in fines. Website: http://www.racingnation.com/story.asp?aid=710

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