If the question is about everyday string we might use for example to tie something, it is a flexible solid. If the question refers to string theory, a state of matter in which it would be categorized would simply not be applicable. The reason is, material states such as solid, liquid, gas, describe manifestations of forces between entire atoms or molecules; since string theory relates to a model representing a particle, its state would not, in isolation, represent collective behaviors of larger structures of which it is only a component.
If you think to string theory I suppose that an answer is impossible today.
Gas
solid
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
solid, liquid, gas, plasma
Solid
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
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
These nine types of solution are solid to solid solid to liquid solid to gas liquid to solid liquid to liquid liquid to gas gas to solid gas to liquid gas to gas
gas
a feather is a solid
Solid --> Liquid = melting Other changes of state: Solid --> Gas = sublimation Gas --> Solid = deposition Liquid --> Solid = freezing/solidification Gas --> Liquid = condensation Liquid --> Gas = vaporization
* solid to liquid: melting* liquid to solid: freezing* liquid to gas: vaporization* gas to liquid: liquefaction* solid to gas: sublimation* gas to solid: deposition
Zinc is all, a solid, liquid, and a gas. when it is melted, it is a liquid, when the liquid is heated, it becomes a vapor, a gas, and when the liquid is froze is is a solid.