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Mindmap: Combustion and Flame | Science Class 8 PDF Download

Mindmap: Combustion and Flame | Science Class 8

The document Mindmap: Combustion and Flame | Science Class 8 is a part of the Class 8 Course Science Class 8.
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FAQs on Mindmap: Combustion and Flame - Science Class 8

1. What is combustion?
Ans. Combustion is a chemical reaction between a fuel and an oxidizing agent, usually oxygen, which produces heat, light, and various products such as carbon dioxide and water vapor.
2. How does combustion occur?
Ans. Combustion occurs when a fuel, such as wood or gasoline, combines with oxygen in the presence of heat, resulting in the release of energy in the form of heat and light.
3. What are the types of flames produced during combustion?
Ans. There are three types of flames produced during combustion: a blue flame, which indicates complete combustion; a yellow flame, which indicates incomplete combustion; and a red flame, which indicates a lack of oxygen.
4. What are the factors that affect the rate of combustion?
Ans. Several factors affect the rate of combustion, including the availability of oxygen, the surface area of the fuel, the temperature, and the concentration of the fuel.
5. Why is combustion important?
Ans. Combustion is important because it provides us with heat and light energy, which are essential for various purposes such as cooking, heating, and electricity generation. It is also used in transportation through the combustion of fuels in engines.
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