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Combustion and flame

Class 8 from KVAA Kendraya Vidyalaya army area<br>

Madhuri20
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Combustion and flame

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  1. WELCOME

  2. COMBUSTION FLAME

  3. What is combustion? Combustion is a chemical process in which a substance burns in air or oxygen, producing heat and light energy. The substance that undergoes combustion is called a combustible substance or fuel. Combustion cannot take place in the absence of oxygen1. Burning of any substance is defined as combustion. Combustion is a chemical change in which both heat and light

  4. Forest fire MEDIUM TEXTForest fires can be defined as any uncontrolled and non-prescribed combustion or burning of plants in a natural setting such as a forest, grassland, brushland, or tundra, which consumes the natural fuels and spreads based on environmental conditions (e.g., wind, topography). Fuel,Oxygen, and heat sources help the

  5. IGNITION TEMPERATURE he autoignition temperature or self- ignition temperature, often called spontaneous ignition temperature or minimum ignition temperature (or shortly ignition temperature) and formerly also known as kindling point, of a substance is the lowest temperature in which it spontaneously ignites in a normal

  6. How Do We control fire Keep all fires and heaters well guarded, especially open fires.... Keep portable heaters and candles away from furniture and curtains.... Don't dry or air clothes over or near the fire, or the cooker. Do not smoke in bed. Many fires start in the kitchen, especially fat fires.

  7. Types of combustion Combustion is actually a scientific term for burning. 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. And when this heat energy release it will also produce light

  8. BIG TEXT The word “flame’ itself comes from the Latin word “flamma”. Very simply put flames are the visible part of a combustion reaction. During combustion, the fuel reacts with the oxygen and produces a huge amount of heat energy. Due to this heat, the atoms of the reactants get superheated. And as these atoms are leaving the combustion zone they bleed of this excess energy in form of light. Now as you saw to see flames some combustion reaction must occur of a fuel in presence of oxygen. A fuel is any substance that is burned as a source of heat or a source of power. Some examples of a fuel are coal or petrol or natural gas. The wax of a candle is also a fuel actually. An ideal fuel is one that is inexpensive and easily available with a high calorific value.

  9. Fuel Effciency MEDIUM TEXT

  10. Burning of fuels leads to harmful products MEDIUM TEXT

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