fire has no specific chemical formula because it is formed from different compound.
Physical Properties of Fire:
| Characteristic |
Details |
| Expansion |
Fire tends to expand rapidly, especially in the presence of combustible materials, due to the release of gases. |
| Flame Shape |
Fire typically appears as a flickering, elongated flame with a distinct conical shape. |
| Heat Production |
Fire generates heat energy as a result of combustion. |
| Light Emission |
Fire emits visible light in various colors, depending on the temperature and materials being burned. |
| Smoke Production |
Fire generates smoke, which consists of small particles and gases produced during combustion. |
| Temperature |
Fire can reach high temperatures, typically ranging from several hundred to several thousand degrees Celsius. |
Chemical Properties of Fire:
| Characteristic |
Details |
| Combustion |
Fire is a chemical reaction known as combustion, involving rapid oxidation of a fuel in the presence of oxygen. |
| Combustion Products |
Fire produces combustion byproducts, including gases (such as carbon dioxide, carbon monoxide, and water vapor), ash, and soot. |
| Exothermic Reaction |
Fire is an exothermic reaction, meaning it releases heat energy to the surroundings. |
| Flame Color |
The color of the flame indicates the chemical elements or compounds present in the fuel and the temperature of the fire. Different colors may indicate different burning materials. |
| Fuel Consumption |
Fire consumes fuel to sustain itself and continue burning. The type and quantity of fuel affect the behavior of fire. |
| Oxidation |
Fire involves the process of oxidation, where oxygen reacts with the fuel, releasing heat, light, and various combustion byproducts. |
Reactions of fire with Alkaline Earth Metal
| Alkaline Earth Metal |
|
Chemical Equation |
| Beryllium (Be) |
|
No product formed |
| Magnesium (Mg) |
|
2Mg and O₂ → 2MgO |
| Calcium (Ca) |
|
2Ca and O₂ → 2CaO |
| Strontium (Sr) |
|
2Sr and O₂ → 2SrO |
| Barium (Ba) |
|
2Ba and O₂ → 2BaO |
| Radium (Ra) |
|
No specific equation available. |
Reactions of fire with Alkali Metal
| Alkali Metal |
|
Chemical Equation |
| Lithium (Li) |
|
4Li and O₂ → 2Li₂O |
| Sodium (Na) |
|
4Na and O₂ → 2Na₂O |
| Potassium (K) |
|
4K and O₂ → 2K₂O |
| Rubidium (Rb) |
|
4Rb and O₂ → 2Rb₂O |
| Cesium (Cs) |
|
4Cs and O₂ → 2Cs₂O |
| Francium (Fr) |
|
No specific equation available. |
Reactions of fire with Transition Metal
| Transition Metal |
|
Chemical Equation |
| Iron (Fe) |
|
4Fe and 3O₂ → 2Fe₂O₃ |
| Copper (Cu) |
|
2Cu and O₂ → 2CuO |
| Silver (Ag) |
|
No product formed |
| Gold (Au) |
|
No product formed |
| Platinum (Pt) |
|
No product formed |
| Titanium (Ti) |
|
2Ti and O₂ → 2TiO₂ |
Reactions of fire with Non-Transition Metal
| Non-Transition Metal |
|
Chemical Equation |
| Aluminum (Al) |
|
4Al and 3O₂ → 2Al₂O₃ |
| Zinc (Zn) |
|
2Zn and O₂ → 2ZnO |
| Tin (Sn) |
|
2Sn and 2O₂ → 2SnO₂ |
| Lead (Pb) |
|
No product formed |
| Bismuth (Bi) |
|
No product formed |
| Antimony (Sb) |
|
4Sb and 3O₂ → 2Sb₂O₃ |
| Arsenic (As) |
|
No product formed |
| Mercury (Hg) |
|
No product formed |
| Iodine (I) |
|
No product formed |
| Sulfur |
|
S and O₂ → SO₂ (g) |
Reactions of fire with Non-Metal
| Non-Metal |
|
Chemical Equation |
| Hydrogen (H₂) |
|
2H₂ (g) and O₂ → 2H₂O (g) |
| Oxygen (O₂) |
|
No product formed |
| Nitrogen (N₂) |
|
No product formed |
| Carbon (C) |
|
C₍ₛ₎ and O₂ → CO₂ (g) |
| Phosphorus (P) |
|
4P₍ₛ₎ and 5O₂ → 2P₂O₅ |
| Sulfur (S₈) |
|
S₈ and 8O₂ → 8SO₂ (g) |
| Chlorine (Cl₂) |
|
No specific equation available. |
| Fluorine (F₂) |
|
No specific equation available. |
| Bromine (Br₂) |
|
No specific equation available. |
| Iodine (I₂) |
|
No product formed |
Reactions of fire with Metalloid
| Metalloid |
|
Chemical Equation |
| Boron (B) |
|
2B₍ₛ₎ and 3O₂ → 2B₂O₃ |
| Silicon (Si) |
|
No product formed |
| Germanium (Ge) |
|
No product formed |
| Arsenic (As) |
|
No product formed |
| Antimony (Sb) |
|
4Sb and 3O₂ → 2Sb₂O₃ |
| Tellurium (Te) |
|
Te and O₂ → TeO₂ |
| Polonium (Po) |
|
No specific equation available. |
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