At one atmosphere of pressure helium can not be cooled to form a solid. Helium has the lowest boiling temperature of any substance. At what temperature (@1 atm) would helium be a liquid so that you could fill the Buck Rogers of the 25th Century Ray Gun?
_____ degrees Kelvin
_____ degrees Celcius
2007-06-02 11:16:46 · 3 answers · asked by xocharliexo121 2 in Science & Mathematics ➔ Chemistry
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2007-06-02 11:39:43 · answer #1 · answered by Anonymous · 0⤊ 2⤋
Below are the Critical temperature and Pressure of Helium.
If either of the below conditions is not met, Helium cannot be condensed: -
-267.96°C (5.19 K) and 2.24 atm (227 kPa)
When in liquid form, the pressure can be decreased to atmospheric and the Helium will boil at its Critical Temperature.
2007-06-02 11:58:06 · answer #2 · answered by Norrie 7 · 1⤊ 0⤋
First we look up the boiling point of helium, which is 4.22 Kelvin, according to my source.
To get Celsius from Kelvin, you subtract 273.15.
4.22 - 273.15 = -268.93
So helium boils at -268.93 Celsius, which is really 4.22 Kelvin.
2007-06-02 11:21:56 · answer #3 · answered by lithiumdeuteride 7 · 3⤊ 0⤋