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kimdesug
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Also the chemical involve in the W and iodine. Thx
The chemical reaction that occurs inside a tungsten lamp is called incandescence. This is when the tungsten filament is heated to a high temperature, causing it to emit visible light.
The tungsten filament is heated through the process of electrical resistance. When an electric current is passed through the filament, it encounters resistance, which then creates heat.
The gas inside the lamp, typically a mixture of argon and nitrogen, acts as a buffer and helps to prevent the tungsten filament from burning up too quickly. It also helps to create a more stable and consistent light output.
During the chemical reaction, the tungsten filament reaches temperatures of up to 3,000 degrees Celsius. This causes the filament to glow and emit visible light. However, over time, the filament will gradually evaporate and thin out, eventually leading to the bulb burning out.
No, the chemical reaction in a tungsten lamp is not reversible. Once the tungsten filament has evaporated and the bulb has burnt out, it cannot be restored to its previous state. This is why tungsten lamps have a limited lifespan and need to be replaced periodically.