Question

The temperature at which a polymorph.
substance changes from one form to
another is called
​

Answer 1

Explanation:

Polymorphic transition is a reversible transition of a solid crystalline phase at a certain temperature and pressure to another phase of the same chemical composition with a different crystal structure. For examples, the transitions of quartz (SiO2) at 1 143 K to tridymite, and at 1 743 K to cristobalite.

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Answer 2

Polymorphic transition is a reversible transition of a solid crystalline phase at a certain temperature and pressure to another phase of the chemical composition with a different crystal structure .

Explanation:

For Examples: the transition of quartz ( Si O2) at (1143) K tridymite ,and at ( 1743) K to cristobalite.

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