Effect of change of pressure defaniton
When you apply a high amount of pressure on a material, the particles in the material can’t move as freely compared to when the pressure was absent. So, the more pressure you put on a material, the closer it will be to a solid. If there is a low amount of pressure, then the particles in the material can move much more freely, so the less pressure on a material, the closer it will be to gas.
The physical state of matter can be changed by changing the pressure. By lowering temperature
and increasing the pressure gases can be changed into liquids and some solids can be changed into gases on decreasing the pressure. This happens with gases as there is lots of space between the particles of a gas and upon applying high pressure particles come close to each other which upon cooling gets liquified.