Is hydrogen a solid, liquid, or gas at room temperature?

1 Answer
Jun 6, 2018

Answer:

Hydrogen is a gas at room temperature. It is in the air that you breathe.

Explanation:

The boiling point of hydrogen is #−252.879 °"C"# at standard pressure.

To get hydrogen to the liquid state, the temperature must be below its critical temperature of #"33 K"# or #-240.15^@"C"# and must be at a minimum pressure of #"13 atm"#.
https://sciencing.com/liquefy-hydrogen-5220130.html