The question is based on the misconception that liquids and solids cannot be compressed: they can. The molecules of gas are further apart allowing them to be compressed more easily.
The molecules of a solid are the most tightly packed than those of either gas or liquid making it the hardest of the three to compress. Gas has the most space between molecules and is therefore the easiest to compress.
To get a solid to a liquid you have to apply heat and melt it, and to get a liquid to a gas it has to evaporate. If you are talking about a solid going into a gas, then I don't know.
it is a gas
Platinum is a solid.
gas -> liquid = condensation liquid -> solid = solidification (freezing) solid -> gas = sublimation gas -> solid = deposition solid -> liquid = melting liquid -> solid = vaporization
compress it
(see question Which is harder to compress solid liquid or gas)
The differences between a solid, liquid and gas are simple! A solid is an object that has a set volume, and is hard to compress. A liquid will take the shape of its container, but is hard to compress. A gas will take the shape of its container, and is easy to compress.
The molecules of a solid are the most tightly packed than those of either gas or liquid making it the hardest of the three to compress. Gas has the most space between molecules and is therefore the easiest to compress.
The particles in a liquid are close together. In a solid the particles are tightly packed together so you cannot compress them at all. The particles in a gas are far apart, so when they are compressed the volume of the gas reduces. The bonds in a liquid are not as close as those in a solid but they are still too close for compression.
The gas can't generally turn straight into a solid, it has to change into a liquid and then a solid. When a gas turns into a liquid, the particles go closer together into groups and condensate. When the liquid turns into a solid, the particles all compress into a small space thus making a solid object.-----------------------------------------------------------------------But the phenomenon of change from a gas to a solid is also very known and is called deposition.
Solid
There is plenty of space between the molecules of a gas but relatively little between those of a solid or liquid.
General classes of colloids are: gas in liquid, gas in solid, liquid in gas, liquid in liquid, liquid in solid, solid in gas, solid in liquid, solid in solid.
solid
evaporation solid to liquid - melting liquid to gas - evaporation gas to liquid - condensation liquid to solid - freezing solid to gas and gas to solid - sublimation
Is a pencil a solid liquid or gas