Question:

What are the 6 phase changes?

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pls. answer this one..

6 phase changes..

i nid tonight...

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3 ANSWERS


  1. Are you referring to the "states of matter?"

    Einstein- Boltzmann condensate

    Solid

    Liquid

    Gas

    Plasma

    Don't know of a 6th.....energy?.....I guess you could convert all the mass to energy using relativity....don't know


  2. Types of phase transition

    Examples of phase transitions include:

    The transitions between the solid, liquid, and gaseous phases of a single component, due to the effects of temperature and/or pressure: To

    From Solid Liquid Gas Plasma

    Solid Solid-Solid Transformation Melting Sublimation N/A

    Liquid Freezing N/A Boiling/Evaporatio...

    Gas Deposition Condensation N/A Ioniza...

    Plasma N/A N/A Recombination/Deionizat...

    (see also vapor pressure and phase diagram)



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    A small piece of rapidly melting argon ice simultaneously shows the transitions from solid to liquid to gas.

    A eutectic transformation, in which a two component single phase liquid is cooled and transforms into two solid phases. The same process, but beginning with a solid instead of a liquid is called a eutectoid transformation.

    A peritectic transformation, in which a two component single phase solid is heated and transforms into a solid phase and a liquid phase.

    A spinodal decomposition, in which a single phase is cooled and separates into two different compositions of that same phase.

    The transition between the ferromagnetic and paramagnetic phases of magnetic materials at the Curie point.

    The transition between differently ordered, commensurate or incommensurate, magnetic structures, such as in cerium antimonide.

    The martensitic transformation which occurs as one of the many phase transformations in carbon steel and stands as a model for displacive phase transformations.

    Changes in the crystallographic structure such as between ferrite and austenite of iron.

    Order-disorder transitions such as in alpha-titanium aluminides.

    The emergence of superconductivity in certain metals when cooled below a critical temperature.

    The transition between different molecular structures (polymorphs or allotropes), especially of solids, such as between an amorphous structure and a crystal structure or between two different crystal structures.

    Quantum condensation of bosonic fluids, such as Bose-Einstein condensation and the superfluid transition in liquid helium.

    The breaking of symmetries in the laws of physics during the early history of the universe as its temperature cooled.

    Phase transitions in intractable computational complexity problems such as NP-complete or PSPACE problems. For example it has been noticed in k-SAT problems that the transition from solvable to unsolvable instances exhibits threshold behavior depending on the ratio of number of clauses to number of variables. Moreover, the amount of computational time required to solve the problem or determine it to be unsolvable increases drastically around the threshold. This line of research comes mostly from investigating similarities between computational complexity and statistical physics.

    Phase transitions happen when the free energy of a system is non-analytic for some choice of thermodynamic variables - see phases. This non-analyticity generally stems from the interactions of an extremely large number of particles in a system, and does not appear in systems that are too small.

    It is sometimes possible to change the state of a system non-adiabatically in such a way that it can be brought past a phase transition without undergoing a phase transition. The resulting state is metastable i.e. not theoretically stable, but quasistable. See superheating, supercooling and supersaturation.

  3. condesation (gas to liquid), freezing (liquid to solid), melting (solid to liquid), Evaporation (liquid to gas), sublimation (gas to solid) and deposition (solid to gas)

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