The chemicals in a lightstick give off light as they react. When the lightstick is placed in warm water the glow increases. This is because the :

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higher temperature catalyzes the reaction.

activation energy for the process is lowered.

average kinetic energy of the reactants increases.

higher temperature changes the wavelength of light emitted.

answer is B.

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Detailed Solution

The chemicals in a light stick give off light as they react. When the light stick is placed in warm water the glow increases. This is because the average kinetic energy of the reactants increases.

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