This version (2016/04/18 00:00) was approved by svrijn.

Growing Balloon


With the help of a balloon and some liquid nitrogen, we can easily explain the concept of expanding gasses while they evaporate.

Description of the Experiment

First we fix an Y-tube, a glass as big as a shotglass with two exits, onto a standard. We attach the balloon to one of the exits, and then we pour some liquid nitrogen into the Y-tube. The other exits is closed with a cork, so the gasseous nitrogen can only escape into the balloon, so the balloon grows.

Safety Information

* Standard LN2 safety issues * Y-tube can fall and break on the ground, spilling liquid nitrogen * Standard low temperature safety

Equipment and materials

- Y-tube - Balloon - Liquid Nitrogen - Standard - Cork


Performed by

experiments/growing_balloon.txt · Last modified: 2016/04/05 13:24 (external edit)
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