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Jul 18, 2024 · Fire is mostly a state of matter called plasma. However, parts of a flame consist of solids and gases. The exact chemical composition of fire depends on the nature of the fuel and its oxidizer. Most flames consist of carbon dioxide, water vapor, nitrogen, and oxgen.
- Anne Marie Helmenstine, Ph.D.
Flames consist primarily of carbon dioxide, water vapor, oxygen and nitrogen. If hot enough, the gases may become ionized to produce plasma. [2] . Depending on the substances alight, and any impurities outside, the color of the flame and the fire's intensity will be different. [3]
Oct 7, 2024 · Fire, rapid burning of combustible material with the evolution of heat and usually accompanied by flame. It is one of the human race’s essential tools, control of which helped start it on the path toward civilization. The original source of fire undoubtedly was lightning, and such fortuitously.
- The Editors of Encyclopaedia Britannica
- Fire is a rapid burning of combustible material in the presence of oxygen manifested as flames. It is usually accompanied by heat and light. Fire i...
- Evidence suggests that the earliest controlled use of fire by hominins was about 1,420,000 years ago. However, it was not until about 7000 BCE that...
- Early humans used fire to keep warm and cook their food. They also learned to use it in hunting and warfare, to kill insects, and to clear forests...
- The most widespread method of producing fire among prehistoric peoples was the friction method. Most commonly, a pointed hardwood was twirled betwe...
- Fire has been an essential element at every stage of the growth of civilization. Much of the history of technology and science might be characteriz...
Apr 29, 2020 · Flame Chemistry. What is Fire Exactly? Fire is an exothermic, self-perpetuating reaction that happens when a solid, liquid or gas-phase fuel undergoes rapid oxidation. This is known as combustion, and the reaction releases heat, light and further chemical reactions.
Fire’s basic combustion equation is: fuel + oxygen —> carbon dioxide + water, a line many of us had drummed into us by school teachers. However, combustion reactions do not proceed...
Jun 25, 2020 · Fire is an exothermic chemical reaction that produces energy in the form of heat and light. ‘The elements of fire’ explains its composition through a ‘triangle’ of heat, fuel, and oxygen, and the processes of ignition and combustion.
Fire is the visible effect of the process of combustion – a special type of chemical reaction. It occurs between oxygen in the air and some sort of fuel. The products from the chemical reaction are completely different from the starting material.
