Liquid Nitrogen Water Cannon.wmv

A liquid nitrogen water cannon is fired off at Green River Community College on Jan 15, 2010. A 20 oz. soda bottle is filled about 1/3 of the way with liquid nitrogen, then closed with a screw-on cap. The weighted bottle is then dropped into a tall tube filled with water, where it immediately sinks to the bottom. As the liquid nitrogen (boiling point -196 degrees Celsius) evaporates, the pressure in the soda bottle rises. The pressure quickly reaches the bursting point of the bottle, approximately 10 atmospheres or 150 lbs. per square inch. When the soda bottle bursts, the extreme pressure of the expanding nitrogen gas blows the water up out of the tube in a towering water eruption.

Category:

Science & Technology

Tags:

• liquid nitrogen
• liquid nitrogen cannon
• liquid nitrogen water cannon
• GRCC
• Green River Community College
• physics
• gas pressure
• change of state