Ammonia fountain

The ammonia fountain is a type of chemical demonstration. The experiment consists of introducing water through an inlet to a container filled with ammonia gas [1]. Ammonia dissolves into the water and the pressure in the container drops. As a result more water is forced into the container from another inlet creating a fountain effect. The demonstration introduces concepts like solubility and the gas laws at entry level.

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References

  1. ^ The Ammonia Smoke Fountain: An Interesting Thermodynamic Adventure M. Dale Alexander , Daniel T. Haworth J. Chem. Educ., 1999, 76 (2), p 210 doi: 10.1021/ed076p210