Gay Lussac's Law Demo

In this video you are seeing Gay-Lussac's Law put into action. As the piston goes down into the cylinder the pressure of the gas in the cylinder increases as the volume of the gas decreases (Boyle's Law). As the pressure of the gas inside the cylinder increases the temperature of the gas inside the cylinder increases directly proportional to the pressure increase (Gay Lussac's Law). The temperature increase is so great that it is enough to ignite the small piece of cotton that is resting at the bottom of the cylinder.

[rickyroiz]

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