A common observation seen in ( Fe\_3O\_4 ) is that it is fer... | Chemistry | SolveeIt

Question

A common observation seen in $Fe_3O_4$ is that it is ferrimagnetic at room temperature but at $850 \,K$ it becomes

diamagnetic

paramagnetic

ferromagnetic

non-magnetic

Answer

paramagnetic

Explanation

Solution

The correct option is(B): paramagnetic.

At $850\,K, Fe_{3}O_{4}$ becomes paramagnetic.

the transition of Fe3O4 from being ferrimagnetic at room temperature to paramagnetic at 850 K is a consequence of its Curie temperature. Below Tc, it exhibits ferrimagnetism due to the alignment of magnetic moments, while above Tc, thermal energy disrupts this alignment, and it becomes paramagnetic with no net magnetization. This transition in magnetic behavior is a well-known property of magnetic materials and is governed by their temperature-dependent magnetic properties.

Chemistry Question on The solid state

Solution