You purchase a glow stick during an evening parade. After it ends, your roommate tells you that if you place it in the freezer, it will glow for a longer time. Assuming she knows what she is talking about, why would this be true?
A)Reaction rates can be expected to decrease as temperature is reduced.
B)It's dark in a closed freezer, preventing the stick from glowing.
C)There is less oxygen inside the freezer than outside, so the reaction slows down.
D)Your roommate simply made up the story to annoy you.

Question

You purchase a glow stick during an evening parade.  After it ends, your roommate tells you that if you place it in the freezer, it will glow for a longer time. Assuming she knows what she is talking about, why would this be true?
A)Reaction rates can be expected to decrease as temperature is reduced.
B)It's dark in a closed freezer, preventing the stick from glowing.
C)There is less oxygen inside the freezer than outside, so the reaction slows down.
D)Your roommate simply made up the story to annoy you.

Quizplus · Accepted Answer

The chemical reaction that produces light in a glow stick is temperature-dependent. Lower temperatures slow down the reaction rate, which means the glow stick will emit light for a longer period when it's colder.

You Purchase a Glow Stick During an Evening Parade