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Lightsticks glow because of a chemical reaction between the two compounds that are mixed when the stick is activated. Chemical reactions are almost always affected by surrounding temperatures. Some reactions want to absorb heat and some want to radiate heat. In the case of light stick, it will glow longer in extreme cold... thus the reason you can put one in the freezer and it will glow later. What this is telling you is that the chemical reaction wants to absorb heat and by placing the reaction container (light stick) in a cold environment (freezer) there is less heat to be absorbed and therefore the chemical reaction occurs slower and therefore extends the glowing affect.

Hope this answers the question!

2006-09-14 02:43:13 · answer #1 · answered by wrkey 5 · 0 0

And to add to the answer directly above . . . When the molecules absorb heat they move faster, when the loose heat they slow down. Because of the 'Collision Theory', which says that a reaction can only occur then molecules collide, the faster they move the more bump into each other (in this case giving off light) and when they slow down they hit less often, giving off less light.

2006-09-15 22:17:56 · answer #2 · answered by teachr 5 · 0 0

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