Fire Syringe

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Fire Syringe

A syringe with a metal tube inside of it

PIRA: 4B70.10

Materials: Fire Syringe, Cotton

This demo is a perfect representation of PV=NRT. This demo has a cotton ball in a small contained chamber. Once the very small amount of cotton is in place. You slam the syringe closed and the change in pressure is greater than the change in volume so the temperature will rise fast enough to ignite the cotton in a flash. Done best in a dim or dark classroom.