3. Lightsticks contain a substance that breaks down during a chemical reaction. A release of energy (as light) accompanies this reaction. Therefore, the amount of light released is proportional to the number of molecules breaking down. a) The lightsticks below are in water of different temperatures. Which one is in the warmer water? b) What would be the effect on the intensity of a lightstick and the duration of its glow if a lightstick was placed in a freezer?

3. Lightsticks contain a substance that breaks down during a chemical reaction. A release of energy (as light) accompanies this reaction. Therefore, the amount of light released is proportional to the number of molecules breaking down. a) The lightsticks below are in water of different temperatures. Which one is in the warmer water? b) What would be the effect on the intensity of a lightstick and the duration of its glow if a lightstick was placed in a freezer?

Chemistry: An Atoms First Approach

2nd Edition

ISBN:9781305079243

Author:Steven S. Zumdahl, Susan A. Zumdahl

Publisher:Steven S. Zumdahl, Susan A. Zumdahl

Chapter7: Chemical Energy

Section: Chapter Questions

Problem 16Q: For the reaction HgO(s)Hg(l)+12O2(g),H=+90.7KJ: a. What quantity of heat is required to produce 1...

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