## Is absolute 0 possible?

There’s a catch, though: absolute zero is impossible to reach. The reason has to do with the amount of work necessary to remove heat from a substance, which increases substantially the colder you try to go. To reach zero kelvins, you would require an infinite amount of work.

## Can zero pressure exist?

No. While most liquids have fairly low binding energies (and thus, relatively high vapor pressures) there are liquids that will not evaporate in a vacuum at an appreciable rate, one example being ionic liquids.

## What does it mean when pressure is 0?

When it comes to air pressure (say for example, inside a tire), this takes the form of measuring it relative to ambient air temperature, or a perfect vacuum. The latter case, where zero pressure is referred against a total vacuum, is known as Absolute Pressure.

## What happens when you reach absolute zero?

At absolute zero, atoms would occupy the lowest energy state. At an infinite temperature, atoms would occupy all energy states. Negative temperatures then are the opposite of positive temperatures — atoms more likely occupy high-energy states than low-energy states.

## Can liquid water exist at zero pressure?

Note that liquid water has one of… But there’s no such constraint on the pressure; it’s effectively zero outside of the water, and so the boiling can take place immediately, plunging the water into its gaseous (water vapor) phase!

## Can any liquid exist in a vacuum?

2 Answers. No liquid can be completely stable in a vacuum, since all liquids have some non-zero vapour pressure, and so will evaporate at some rate. However some liquids have an exceptionally low vapour pressure, and so can be used in a vacuum.

## Do ice cubes float in whiskey?

Ice does not float in whiskey. This is because ice has a lower density than whiskey, which causes it to sink to the bottom of the glass. In a whiskey cocktail, ice may float slightly due to the mixture of water and alcohol, but it will not float in a glass of pure whiskey.