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Glow Stick Temperature Demonstration

An easy macroscopic lecture demonstration of the effect of temperature on the rate is to take three glow sticks and three beakers into the lecture. Place beakers side by side. Place room temperature water in one beaker, ice water in the second and very hot water in the third.  Place a glow stick in each beaker and ask students to predict what the difference will be. Leave equilibrating while you do something else, then come back and turn off the room lights. Discuss in terms of collisions and chemiluminescence.



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