Combustion and Flames Full Chapter Class 8 Science | NCERT Science Class 8 Chapter 6
Magnet Brains・2 minutes read
Combustion is a chemical process involving the release of heat and light, requiring a specific ignition temperature and the presence of oxygen to occur. Different types of fuels like kerosene oil are used for combustion, with water not recommended for controlling fires involving electrical equipment due to the risk of electric shock.
Insights
- Combustion is a chemical process involving heat and light release, seen in activities like burning fuel or lighting a match. Different substances have varying ignition temperatures, with kerosene igniting faster due to its lower temperature.
- Fire control methods like using water to lower ignition temperature, covering a burning candle to show oxygen's role, and using carbon dioxide extinguishers to cut off oxygen supply are crucial. Understanding fuel properties, like LPG's low ignition temperature and clean burn, is essential for informed fuel usage decisions.
Get key ideas from YouTube videos. It’s free
Recent questions
What is combustion?
Combustion is a chemical process that involves the release of heat and light through the burning of fuels in the presence of oxygen. It is commonly observed in activities like lighting a match or burning fuel.
How can combustion be controlled?
Combustion can be controlled by methods like covering a burning candle with a glass to demonstrate the role of oxygen in the process. Water can also be used to lower the ignition temperature and cool the burning material, preventing the fire from spreading.
What are examples of combustion?
Common examples of combustion include burning petrol in engines, using LPG in homes, and igniting magnesium ribbon. Different substances have varying ignition temperatures, affecting how quickly they ignite.
Why is understanding combustion important?
Understanding combustion is crucial for managing and preventing accidents involving fire. Different types of combustion, like rapid, spontaneous, and explosive, have distinct characteristics and examples that can help in fire control.
How do fire extinguishers work?
Fire extinguishers containing carbon dioxide are effective in controlling fires involving oil or electrical appliances by cutting off the oxygen supply to the fire. Different fuels have different ignition temperatures, impacting the combustion process and fire control methods.
Related videos
Physics Wallah Foundation
Combustion and Flame in One Shot | Chemistry - Class 8th | Umang | Physics Wallah
The Organic Chemistry Tutor
Endothermic and Exothermic Reactions
Parth Momaya
Towards Green Energy Class 10 SSC || Lecture 1, Thermal Power Plant || Maharashtra state board
Jimmy Kimmel Live
David Blaine Magic Tricks on Jimmy Kimmel Live PART 2
StarTalk
Why Rockets Don't Fly Straight Up