Question

A glow stick that is submerged in 50°C water glows brighter than a glow stick submerged in 45°Cwater​

Answer 1

Answer:

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Answer 2

Glow Stick Chemistry

Explanation:

• Glow sticks show chemiluminescence, i.e., due to a chemical reaction between reactants light is produced
• Now, the rate of a chemical reaction depends on different factors like:

1. Temperature
2. The Concentration of reactants
3. Pressure
4. Orientation of reacting species
5. Presence of other chemicals (that may interfere with reactants and may increase/decrease the reaction rate)

• Affect of Temperature

1. As temperature increases, the rate of chemical reaction also increases because, with temperature increase, the motion of molecules and kinetic energy stored in them increases.
2. That results in frequent bumping of molecules into each other and change in orientation of molecules that favors more molecules to change from reactants into products and move the reaction in the forward direction.
3. Ultimately the reaction rate increases; thus, this makes glow stick glow brighter in hot water ($50^{\circ}$C).