I saw this video on YT shorts where the guy demonstrates how it is impossible to suck water beyond 34 feet from the level it is stored at.
[This is the YT short](https://youtube.com/shorts/rWij9gJWcTg?si=5nTRvPUVFUKSaJmH)
On Google it says that the atmospheric pressure equals the pressure exerted by water column.
I don’t understand how that matters! Because in the end the guy attached a vacuum pump to pull the water up.
Also, if the water boils then it should also make steam.
Does PV=nRT apply there? I know it’s not ideal gas but for all practical purposes we use this equation.
In: Physics
When water boils, the bubbles aren’t air but steam. The energy required for the water molecules to escape the liquid as a gas at lower altitudes is higher because there is more atmospheric pressure on them, keeping them condensed. As you go up in elevation, the boiling point goes down because now there is less energy required to escape the water. Eventually you’ll come to a point where there’s not even enough pressure to prevent the water from boiling which is what happens in the straw, it has no ability to stay together without simply dissipating because there’s no pressure on it. If you went to space without an astronaut suit, every liquid in your body would boil before you froze or anything like that.
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