# Compressing Water: What Happens and Is It Possible?

• mexfight
In summary, when water is compressed to the point where all atoms have no space to move, it will become thicker and eventually turn into solid ice. The specific type of ice formed will depend on the temperature and pressure. It is possible to simulate this type of compression experiment in a lab with high pressures.

#### mexfight

what happens to the atoms in water when it is compressed so much that all atoms have no space to move?

im guessing that it will become thicker, almost soup like.

But what happens after that, does it become solid water?

also, is it possible to set up such an experiment in the real world that can simulate these types of massive pressures it would take to achieve this?

Thanks

Yes, eventually it will turn to solid (assuming your temperature doesn't change).

Find your temperature / pressure on this phase diagram [1] then track upwards as you increase the pressure at constant temperature. It will eventually turn to ice as the molecules are forced together, though the pressure at which this occurs depends on the temperature.

[1] http://en.wikipedia.org/wiki/Phase_diagram#Crystal_phase_diagrams

You'll notice that there are many different types of ice (VI, VII, etc), each of which has a slightly different crystal structure. Depending on your temperature and pressure, the ice you form by compression will have one of these structures.

And yes, it's possible to set this up in experiment (huge pressures can be achieved in labs!).

That pretty much answered all of my burning questions.

Much appreciated
Thanks

## 1. What happens to water when it is compressed?

When water is compressed, the molecules are forced closer together, causing the volume of the water to decrease. As a result, the density of the water increases.

## 2. Can water be compressed to a solid state?

Yes, water can be compressed to a solid state under extreme pressures. This process is known as "ice VII" and has been achieved in laboratory settings.

## 3. Is it possible to compress water to the same density as a solid?

No, it is not possible to compress water to the same density as a solid. Water molecules are arranged differently in a solid state, and even under extreme pressure, it is not possible to achieve the same density as a solid.

## 4. What happens to the temperature of water when it is compressed?

When water is compressed, the temperature can increase due to the energy created by the compression. However, this increase in temperature is usually very small and not noticeable.

## 5. Is compressing water a practical method for storing it?

No, compressing water is not a practical method for storing it. The amount of energy required to compress water is significantly higher than the amount of energy that can be stored by the compressed water. This makes it an inefficient and impractical method for water storage.