Liquid Nitrogen Vs Trash Can

lol, we did this at my school, but with a 2 liter. It literally sounded like a bomb went off and water went at least 15 feet in the air. Of course, my teacher forgot to tell the administration, so the whole building was evacuated. Good times

that seemed like a powerful bomb

Why does this happen? I thought liquid nitrogen was way cold, if anything, it would make the water in the trashcan shrink a little bit as the temperature dropped.

Liquid nitrogen is extremely cold and boils away at a very low temperature. If you notice at the beginning of the video once the nitrogen is put in the bottle we screw the lid onto the coke bottle. This traps the expanding gas as the nitrogen boils away in the bottle until there is so much pressure built up that the bottle explodes.

when water freezes it expands