Interpretation : A tungsten filament lasts longer in a halogen lightbulb than in a normal lightbulb to be evaluated.
Concept Introduction : Tungsten vapor is captured by bromine or other halogen molecules, which are then used to reintroduce tungsten atoms to the filament in halogen lights.
A tungsten filament lasts longer in a halogen lightbulb because the tungsten reacts with halogen gas and gets redeposited on the filament.
Halogen light bulbs when compared with standard light bulbs have a brighter output, a longer lifespan, and the potential to use less energy.
A portion of the tungsten in the filament of a normal lightbulb evaporates during operation and is then deposited on the interior of the bulb.
The evaporating tungsten in a halogen lamp undergoes a
This increases the filament's lifespan.
Chapter EH Solutions
Glencoe Chemistry: Matter and Change, Student Edition
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