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Endothermic and Exothermic Reactions (Experiments)


This is a series of lectures in videos covering Chemistry topics taught in High Schools.

Endothermic Reaction
In this experiment, two solids (Ammonium Nitrate and Barium Hydroxide) are added to a beaker. As they react, ammonia gas, water and Barium Nitrate are produced. This results in a large increase in entropy, which is the measure of randomness in a system. This causes the temperature to drop, as there is an increase in Enthalpy.
Dissolving Ammonium Nitrate An Endothermic Process
A demonstration of the endothermic nature of the dissolving process for Ammonium Nitrate.

Propane Torch: Exothermic/Endothermic Reactions
Dissolving Calcium Chloride: An Exothermic Process
A demonstration of the exothermic nature of the dissolving process for calcium chloride.

Exothermic Reactions
4 ways to make fire without matches by using chemistry

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