explain the working of a fire extinguisher with the help of a diagram and give the chemical equation.(plz show diagram)
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Answer:
Fire is one of humankind's oldest discoveries; it's also one of our biggest threats. A fire can destroy in a matter of minutes a home or business that has taken decades to establish. That's why methods of putting out fires are so important. Many buildings are equipped with fire extinguishers,
Photo: Putting out a fire caused, by a mortar attack, with a carbon dioxide (CO2) extinguisher. The white cloud coming from the horn is formed when liquid carbon dioxide stored under pressure in the extinguisher turns back to a gas. Photo by Sgt. Jeremiah Johnson courtesy of US Army.
Fire is dangerous!
A boy being taught how to use a fire extinguisher on a blazing fire
Photo: Fire fighters, like this one from the US Navy, are always happy to show you how to use fire extinguishers the correct way. Photo by Rachel McMarr courtesy of US Navy.
Before we start, here's something to note: fire is extremely dangerous. Never ever play with fires or anything that can trigger a fire. You could put your life in danger and risk the lives of other people.
Never play with fire-fighting equipment like fire extinguishers and hoses. They're designed to save lives in emergencies, not to set off like toys. If you set off fire alarms as a prank, people are more likely to ignore them when they go off for real, and someone might die as a result. What if that person was a friend of yours or someone in your family?
If you want to try out a fire extinguisher, go visit your local fire department or arrange for them to come to your school. They'll often be happy to oblige. Many fire departments have open days when you can look around, peek inside a fire engine, and even slide down the fire station poles! Keep an eye out in the local media for events like this.
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