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Liquids at -70 Kelvin or less

L42yB
in Classical Physics

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I was wondering if anyone could tell me what things are are liquids at temperatures below -70 kelvin.

 

I know the boiling point of liquid nitrogen is -77. Are there any others?

Edited by L42yB

Well, helium does liquify but it liquifies at near absolute 0, and the purpose of Kelvin units is to not have negative numbers isn't it? Isn't 0 Kelvin the same as Absolute 0? So how could you have negative Kelvin?

Edited by questionposter

Hydrogen comes to mind... uh oh this sounds like a science class question....

Well, helium does liquify but it liquifies at near absolute 0, and the purpose of Kelvin units is to not have negative numbers isn't it? Isn't 0 Kelvin the same as Absolute 0? So how could you have negative Kelvin?

You are correct. Kelvins is an absolute scale and all values should be positive. e.g. Nitrogen liquifies/boils at 77 K, not -77 K.

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