Why acids create burning sensation on reacting with plasma?
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Fire is not a substance in the same sense as water or air is a substance. Rather, it is a process.
Let me explain.
When you heat a piece of paper (made of cellulose) to a certain temperature in the presence of air, the cellulose reacts with oxygen in the air to form CO2CO2 and H2OH2O. This process is an example of fire.
Here, the key aspects are the following.
The process should be the oxidation of some material.
It should be exothermic and rapid. The amount of energy released per unit time should be high.
A significant part of the energy released should be in the form of radiation and heat.
The following are fire
Burning of kerosine, in flourine
Burning of hydrogen in air
Reaction between N2O4N2O4 and monomethyl hydrazine
The following are not.
Cellular respiration (Oxydation of glucose. exothermic. But not rapid and does not produce light.)
Rusting (Oxidation of iron. exothermic. But not rapid and does not produce light.)
Bioluminescence (Oxidation of luciferin. Produces light. Not rapid and little heat produced.)
In the process of fire, the released energy heats up both the reactants and products. If some of the reactants are solids, incomplete oxidation releases solid particles (soot) hot enough to emit light. A flame is the mixture of reacting gases and solids that emits light.
Let me explain.
When you heat a piece of paper (made of cellulose) to a certain temperature in the presence of air, the cellulose reacts with oxygen in the air to form CO2CO2 and H2OH2O. This process is an example of fire.
Here, the key aspects are the following.
The process should be the oxidation of some material.
It should be exothermic and rapid. The amount of energy released per unit time should be high.
A significant part of the energy released should be in the form of radiation and heat.
The following are fire
Burning of kerosine, in flourine
Burning of hydrogen in air
Reaction between N2O4N2O4 and monomethyl hydrazine
The following are not.
Cellular respiration (Oxydation of glucose. exothermic. But not rapid and does not produce light.)
Rusting (Oxidation of iron. exothermic. But not rapid and does not produce light.)
Bioluminescence (Oxidation of luciferin. Produces light. Not rapid and little heat produced.)
In the process of fire, the released energy heats up both the reactants and products. If some of the reactants are solids, incomplete oxidation releases solid particles (soot) hot enough to emit light. A flame is the mixture of reacting gases and solids that emits light.
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19
Acidity, also called acid reflux, is a condition that is characterised by heartburn that is felt around the lower chest area. It is a common condition that occurs when stomach acid flows back up into the food pipe. The most common acid reflux symptom is a burning sensation in the chest, and pain.
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