RESEARCH METHODOLOGY

Detailed explanation-1: -This is because the rate of the reaction that produces chemical light increases or decreases with temperature – hotter = faster reaction and brighter appearance, colder = slower reaction and less bright appearance.

Detailed explanation-2: -The hot water has faster moving particles than the cold and room temperature water. These fast-‐ moving particles collide with the glow stick, transferring energy. This causes the liquid particles in the glow stick to move quicker, increasing the rate of the chemical reaction.

Detailed explanation-3: -An increase in temperature typically increases the rate of reaction. An increase in temperature will raise the average kinetic energy of the reactant molecules. Therefore, a greater proportion of molecules will have the minimum energy necessary for an effective collision (Figure. 17.5 “Temperature and Reaction Rate”).

Detailed explanation-4: -No heat energy is released in glow stick reactions; all energy is released as light. Yes, it is an exothermic reaction and light energy is released (fluorescent). The glow stick does not feel warm because all of the energy released is given out as light. Glow sticks are used daily at home, for parties, concerts, etc.