donot change in composition,allotropic like melting,solidification
> A eutectic transformation, in which a two component single phase liquid is cooled and transforms into two solid phases.> A peritectic transformation, in which a two component single phase solid is heated and transforms into a solid phase and a liquid phase.
A change in phase or state
This is boiling - liquid transformation in gas.
The transformation of a physical state of a substance into a different physical state is called a phase change. An example of this is water changing from solid (ice), to a liquid (water), to a gas (steam).
A phase transition is the transformation of a thermodynamic system from one phase or state of matter to another. Types of phase transitions are called melting, boiling, etc. They are just terms to describe the specific transition.
It is the phase transformation whereby there is no change in compisition.
The identity transformation.
line transformation ratio would be the turns ratio (ie voltage ratio), while the phase transformation ratio is most probably the phase shift introduced by a 3 phase transformer.
congruent figure
Rotation is congruent.
The object and its image are congruent.
Dilation - the image created is not congruent to the pre-image
isometry
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Congruent in all three cases.
A Congruent Transformation.
An enlargement transformation