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The main reaction formula is: carbon + oxygen = (ignition) = carbon dioxide + carbon monoxide (incomplete combustion) + energy (the main destination is heat dissipation, conversion to the kettle and the substances in the kettle) The side reaction is not considered (such as the combustion of Shenma fiber, protein, etc.).
When the carbon of the reactants is done (insufficient), the reaction stops and no energy is released from the reaction. As a result, the energy that can be obtained from the kettle and its contents (from salary) is 0.
Brick and wood fire: carbon + oxygen = (under high temperature conditions) = energy + carbon dioxide + carbon monoxide (incomplete combustion), high temperature is caused by frictional heat generation (physics). Side effects were not considered.
Adding fuel to the fire: If the fire before the oil is mainly carbon, then there are other situations that are not considered (such as the reaction substrate is not carbon at the beginning, there are some other components in the oil, etc., if you are interested in writing about it yourself).
Before pouring: Carbon + Oxygen = (Ignited) = Carbon Dioxide + Carbon Monoxide (Not Completely Combusted) + Energy.
After pouring oil: Carbon + Oxygen = (Ignited) = Carbon Dioxide + Carbon Monoxide (Not Completely Combusted) + Energy.
Oil + Oxygen = (Ignited) = Carbon Dioxide + Carbon Monoxide (Not Completely Combusted) + Water + Energy.
Water + Carbon = (High Temperature) = Carbon Monoxide + Hydrogen. Wait a minute.
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Remove combustibles to extinguish the fire.
Drill wood for fire to bring the temperature to the ignition point of combustibles.
Adding fuel to the fire Adding flammables can make the combustion more intense.
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Bottom of the kettle: Removal of combustible substances.
Drilling wood for fire: friction generates heat.
Adding fuel to the fire: adding flammable substances.
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"Evacuate the chain of combustible materials and extinguish the fire.
Drill wood for fire" - friction heats up, so that the temperature of the combustible material in the shed reaches its ignition point.
"Adding fuel to the fire" - increase combustibles to make the burning more vigorous.
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Drawing is to remove combustibles, control the combustion zone of the substance, so as to achieve fire extinguishing, so fill: use the method of removing combustibles to extinguish the fire
Drilling wood for fire can realize friction heat generation, increase the temperature, and reach the ignition point of combustibles, so as to realize the combustion of Youxu reed, so fill: friction heat generation, so that the temperature reaches the ignition point of combustibles;
Adding fuel to the fire is to increase the flammable combustibles, so that the combustion is more famous and vigorous, so fill: increase the flammable materials, so that the combustion is more vigorous;
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The meaning of "drawing wages from the bottom of the kettle" is to remove the firewood under the pot, remove the combustibles, and achieve the purpose of extinguishing the fire;
"Drilling wood for fire" is because when drilling wood, the wood overcomes friction to do work, the internal energy increases, the temperature rises, and when the temperature reaches the ignition point of the wood, the wood burns
Therefore, the answer is: removing combustibles can extinguish fires; Overcome friction and do work, the internal energy increases, the temperature rises, and the ignition point of the head of the large front hall is reached, and the big head burns and burns
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Bottom of the kettle" to reduce reactants.
Drilling wood for fire" friction heat generation reaches the ignition point.
adding fuel to the fire" increases flammable reactants.
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"Draw wages from the bottom of the kettle" - evacuate combustibles and extinguish fires.
"Drill wood for fire" - friction heats up, so that the temperature of combustibles reaches its ignition point.
"Adding fuel to the fire" - increasing combustibles to make the combustion more vigorous.
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The bottom of the kettle is a commonly used method of extinguishing fire, which uses the principle of removing combustibles and pumping away the firewood at the bottom of the pot, so that there will be no combustibles and play a role in extinguishing fires
Although it is incompatible with fire and water, the amount used is too small to help, neither can it cover the firewood to isolate the air, nor can it accompany the destruction to quickly reduce the temperature to below the ignition point, and it is impossible to extinguish the fire
So the answer is: remove combustibles; The temperature must not be allowed to drop below the ignition point quickly
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"Bottom of the kettle" is a commonly used fire extinguishing method, which uses the principle of removing combustibles! If the firewood at the bottom of the pot is removed, there will be no combustibles and it will play a role in extinguishing the fire;
"Water and fire are incompatible" means that the water is heated by evaporation and heat absorption to reduce the temperature, so that the temperature of the combustible material reaches below the ignition point temperature, so that the fire is extinguished.
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The fact that water can extinguish fires is determined by the physical and chemical properties of water. Water is not a combustible substance, the chemical properties of water are stable, water and fire can absorb a large amount of heat in the fire after contact, so that the temperature of the burning substance drops below the ignition point and extinguishes, how much heat can water and fire absorb from the fire? If you raise the temperature of 1 liter of water by 1 degree, you need to absorb 4185 joules of heat, if you want to make 1 liter of water go from 25 to 100 liters, you need to absorb joule heat, and if 1 liter of water completely turns into water vapor, you need to absorb Joule heat. >>>More
Chemistry is very interesting, I like chemistry very much, it is very close to life, and those experiments are also very interesting, chemistry can make some things that we can't understand, how fun.