4C30.34: CHANGE OF STATE OF LN - POPPING CAN LID

PURPOSE: To show the increase in volume which accompanies the transition from liquid to gaseous nitrogen.

DESCRIPTION: Pour some liquid nitrogen into a can and install the plastic lid. The liquid nitrogen heats up, changes to a gas, and blows the lid. Repeat for students who blinked.

SUGGESTIONS:

REFERENCES:

EQUIPMENT: Liquid nitrogen, can with plastic lid.

SETUP TIME: 5 min.


Go back to Lecture-Demonstration Home Page.