Change of state definition

In order to know in depth the meaning of the term change of state, it is essential, first of all, to discover the etymological origin of the two most relevant words that shape it:-Change is a word that derives from Latin., comes from "cambium" which, in turn, emanates from the verb "cambre".It means "to give one thing for another".-State, on the other hand, comes from the Latin word "status" that comes from the verb "stare" , which can be translated as "standing".

A change implies a modification , a alteration or a conversion . State , on the other hand, can refer to the situation, the condition or the stage of something.These two definitions allow us to affirm that a change of state is a transformation.

The concept of change of state is used with reference to the evolution of a substance in different states of aggregation without any changes in its composition being recorded.Common are the gas , the liquid and the solid .

The change of state refers to the physical characteristics of the Elements: when oxygen leaves the gaseous state to pass into the liquid, for example, it is still oxygen .There is no mutation of the substance in a different one.

It is possible to understand the notion of change of state by analyzing the case of water .This substance, composed of an atom of oxygen and two of hydrogen ( H2O ), is it is in a liquid state when its temperature is higher than 0ºC and below 100ºC .If we place a glass of water in a freezer with a temperature of-5ºC, a change of state will be recorded and the water will become solid (it will become ice).Instead, if we put the water in a pot and take it to the fire until it reaches a temperature higher than 100ºC , the liquid will start to evaporate and transform into a gas (it will become steam).

These changes of state can be produced by fusion (from solid to liquid through heat); boiling or vaporization (from liquid to gaseous, also by heat); condensation (from gas to liquid); solidification (from liquid to gaseous); sublimation (from solid to gaseous); or reverse sublimation (from gas to solid).

However, we must not overlook that state change also refers to what a person's marital status is, that is, if they are single, married, widowed, separated, divorced...Thus, when It is mentioned that someone has had a change of state is that he has modified that very important situation of his personal life.A modification that is essential for the person to know in the Administration to, for example, be able to access aid , scholarships and even in order to make the tax declaration in the appropriate way.

Precisely in relation to that there is another change of state.Specifically, in the profiles of the different social networks, Internet users can establish their marital status, however, they can change it when they deem appropriate and after that they will realize their followers with the message: "Pepe has made a change of status: from married to single."