Combustion 4
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Q: When sand is poured over some burning material, the fire goes off. Some classic examples are firecrackers or blowing up of dynamite. The reaction occurs when something ignites to produce heat, light and sound energy, The simple way to describe is it to call it an explosion. 5] Explosive CombustionĮxplosive Combustion happens when the reaction occurs very rapidly. The reaction of alkali metals with water is an example. The temperature rises above ignition point and in the presence of sufficient oxygen combustion will happen. A substance with low-ignition temperatures gets heated and this heat is unable to escape.
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This means that it requires no external energy for the combustion to start. Hence it is a rapid combustion 4] Spontaneous CombustionĪs the name suggests the combustion occurs spontaneously. And it will carry on till the wax burns out. The heat energy is provided when we light the candle with a matchstick. The combustion will carry on as long as the fuel is available.Īn example is when you light a candle. The combustion produces a large amount of heat and light energy and does so rapidly. Rapid energy needs external heat energy for the reaction to occur. 3] Rapid CombustionĪnother type of combustion is Rapid Combustion. Also, incomplete combustion produces less energy than complete combustion. In a complete combustion, the only products are water and carbon dioxide. It leaves behind ash (a form of soot) as a byproduct. This, in turn, produces carbon monoxide and soot instead of carbon dioxide.Īn example is burning of paper. Due to lack of oxygen, the fuel will not react completely. And as opposed to complete combustion it is otherwise known as dirty combustion. Incomplete combustion takes place when the air is in limited supply. In an ideal situation all the wax burns up and complete combustion takes place 2] Incomplete Combustion The two products of the reaction are water and carbon dioxide. The heat from the wick will vaporize the wax which reacts with the oxygen in the air.
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Here the hydrocarbon will burn out completely with the oxygen and leave only two byproducts, water, and carbon dioxide.Īn example of this is when a candle burns.
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Also, complete combustion is also known as clean combustion. Complete combustion occurs in an unlimited supply of air, oxygen in particular. One of the types of combustion is Complete Combustion. Types of Combustion 1] Complete Combustion For the production of energy in thermal power plants.Combustion of Natural Gas or LPG to cook for on your stovetop.Burning of Petrol or Diesel to run your Car.Burning of Wood or Coal to heat your home.In troduction to Fuel and Fuel Efficiency.Hydrocarbon + Oxygen → Carbon Dioxide + Water + Heat Energy Browse more Topics under Combustion And Flame The general exothermic reaction of combustion can be expressed as: This is the visible part of the reaction, the flames. We are all aware of burning, but did you know that burning is actually a chemical reaction? Combustion is a chemical process where any fuel has a reaction with air (oxidant) to produce heat energy.Īnd when this heat energy release it will also produce light in the form of a flame. Combustion is actually a scientific term for burning.