Question

12. The temperature at which a polymorphic
substance changes from one form to another
is called *
(1 Point)
(A) equilibrium temperature
(B) triple point
(C) Boyle's temperature
(D) transition temperature
o substance in​

Answer 1

Answer:

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.

Answer 2

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.