Explain Curie temperature.

Explanation

The ferromagnetic property depends on temperature.
Increasing the temperature of ferromagnetic substance, dipole moment of its molecules become random and destroyed. At high enough temperature a ferromagnetic substance becomes paramagnetic.
The temperature of transition from ferromagnetic to paramagnetism is called the Curie temperature `(T_C)`.
Curie temperature that is in the paramagnetic phase is described by `chi = (C )/( T- T_C) (T gt T_C)`
The Curie temperature `(T_C)` of some of the ferromagnetic material :