10 Examples from Gas to Solid (and the other way around)

The matter It is everything that has mass and body and occupies a place in space. It can be in three states: liquid, solid Y gaseous (Although today we know of the existence of a fourth state of aggregation, the plasma). Each state has physical characteristics that characterize it.

When matter is exposed to large changes in pressure and / or temperature, it may experience a change in your state (from solid to gaseous, from liquid to solid, from gaseous to liquid and vice versa). In all cases in which a change in the state of matter occurs, it does not transform into another substance rather, it changes its physical appearance without altering its chemical composition.

The phenomena that occur when matter goes from a solid state (it has a defined shape) to a gaseous state (it does not have a defined volume or shape and expands freely) and vice versa are:

However, in most cases the substance changes from a gaseous to a liquid state (condensation or liquefaction) and from there to a solid one. The change from gaseous to solid state (and vice versa) occurs under specific conditions of pressure and temperature.

Examples from solid to gaseous (sublimation)

1. Solid sulfur. It sublimates at high temperatures and transforms into gases with a high level of toxicity.
2. Solid iodine. After sublimation, it transforms into a violet-colored gas.
3. Arsenic. At atmospheric pressure sublimates to 613 ° C.
4. Ice or snow. It can sublimate at temperatures below 0 ° C.
5. Benzoic acid. Sublimates above 390 ° C.
6. Camphor. Sublimates at a certain temperature.
7. Flavoring tablet. It sublimates gradually like naphthalene.

Examples from Gaseous to Solid (Reverse Sublimation)

1. Soot. In a hot and gaseous state, it rises, comes into contact with the walls of the chimney and solidifies.
2. Snow. Low temperatures cause the water vapor in the clouds to turn into snow.
3. Iodine crystals. When heated, vapors are produced, which in contact with a cold object are transformed again into iodine crystals.

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