PIRA 4C20.40 Phase Changes: Freezing Liquid Nitrogen
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Photo of University of Texas at Austin's Demonstration
Instructions / Notes:
- Put about 20 ml of liquid nitrogen into a 100 ml beaker that is then placed in a vacuum chamber.
- Place the bell jar onto the vacuum chamber and evacuate the chamber until the LN2 freezes.
- Important Note: If you place more than 20 ml of LN2 into the beaker the demo will not work.
Last Updated 9/98 - University of Texas at Austin Physics Department - All Rights Reserved