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Quick Science Sift #8:rapid vaporization of cryogenic liquid

submitted by gluonium

1 decade 7 years 7 months 1 week ago

When a coffeemaker-full of hot water meets a bucket of liquid nitrogen the rapid vaporization of the liquid creates quite an eruption. The gas occupies ~700 times the volume of the liquid. This is not an experiment I would recommend unless you REALLY know what you are doing. Liquid nitrogen has a low heat capacity so the hot water you pour in is going to blast right back out at nearly the same scalding hot temperature. In addition, you are vaporizing a LARGE amount of pure nitrogen here, asphyxiation risks in closed environments are real and do kill people!

17 Comments

This should do well.

she should have played it off and fell back screaming about her eyes

dayum!

woh

I wish we had science classes like that

"... the goggles do nothing!"

http://www.videosift.com/video/Classic-Simpsons-The-goggles-do-nothing

Gooooo UT. Proud of dem Physics for Poets classes. And I loved playing with LN2 from the bottom of RLM.

DarkSavior says...

Darn, I wish I was in that Science class. I bet that she got an A++++++ for that project.

This is darwin-esque, doesn't something here have that "begging for something to go really wrong" look? Like blasting a litre of liquid nitrogen on the front row person due to the out of control mushroom cloud? That said I loved the video.

BlueGeorgeWashington

They didn't show you the side-affect of the girl in the cloud.....her body turned into one big water blister that night.

*science

Adding video to channels (Science) - requested by rembar.

*nature

Adding video to channels (Nature) - requested by arvana.

2 more comments have been lost in the ether at this killed duplicate.

*length=12

The duration of this video has been updated from unknown to 12 secs - length declared by oritteropo.

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