Fire is the result of a chemical reaction called combustion. At a certain point in the combustion reaction, called the ignition point, flames are produced. Flames consist primarily of carbon dioxide, water vapor, oxygen, and nitrogen.
What elements make up fire?
Oxygen, heat, and fuel are frequently referred to as the “fire triangle.” Add in the fourth element, the chemical reaction, and you actually have a fire “tetrahedron.” The important thing to remember is: take any of these four things away, and you will not have a fire or the fire will be extinguished.
Is fire a gas?
Fire is a plasma, not a gas or a solid. It’s a kind of transient state between being composed of the elements prior to ignition and the spent fumes (Smoke – solid particles and Gasses = Gas molecules.)
Is fire made of atoms?
It’s something to get different molecules in our reaction moving fast and energetically. The fuel might be wax on your birthday candle or newspaper in a fireplace. These items are typically made up of molecules that contain carbon and hydrogen atoms.
What are the 4 types of fire?
Let’s break down each of the 5 different classes of fires more thoroughly.
Class A Fires: “Ordinary” Fires. Class B Fires: Liquids & Gases. Class C Fires: Electrical Fires. Class D Fires: Metallic Fires. Class K Fires: Grease Fires or Cooking Fires. Choose the Right Fire Extinguisher. Complete Regular Training.
Is fire possible without oxygen?
A fire cannot burn without oxygen. You can show this for yourself, in fact: if you light a small candle and then put a clear glass upside-down over that candle (without touching the flame), you can watch the flame slowly extinguish as it uses up all of the oxygen that you have trapped around it with the glass.
What is man made fire?
Man made causes – Fire is caused when a source of fire like naked flame, cigarette or bidi, electric spark or any source of ignition comes into contact with inflammable material.
Is plasma a fire?
Fire doesn’t fall into liquid, because it doesn’t have a fixed volume. Fire doesn’t fall into solid, because it doesn’t have a fixed shape. Thus, fire is currently considered a plasma.
Is plasma hotter than fire?
Plasmas are gases in which a good fraction of the molecules are ionized. Ordinary flames ionize enough molecules to be noticeable, but not as many as some of the much hotter things that we usually call plasmas. (See for a guide to an experiment that uses the electrical conductivity of a flame caused by its ions.)
What is fire energy called?
The log you burn on a campfire is seen as stored potential energy (in the form of chemical energy). Stored potential energy is released by burning the log. The chemical reaction which comes from burning the log is called combustion. Combustion can only happen if oxygen is present.
What is class ABCD fire?
Classes of fire
Class A – fires involving solid materials such as wood, paper or textiles. Class B – fires involving flammable liquids such as petrol, diesel or oils. Class C – fires involving gases. Class D – fires involving metals. Class E – fires involving live electrical apparatus. (
What is the science of fire?
A fire itself is the result of a chemical reaction known as combustion, where fuel and oxygen react with one another and atoms rearrange themselves irreversibly. For this to occur, fuel must reach its ignition temperature, and combustion will continue if there is enough fuel, heat and oxygen.
What is class K fire?
Class K. Class K fires involve vegetable oils, animal oils, or fats in cooking appliances. Extinguishers with a K rating are designed to extinguish fires involving vegetable oils, animal oils, or fats utilized in commercial cooking appliances.
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