The susceptibility of a paramagnetic material is χ at 27° C. At what temperature

Question

The susceptibility of a paramagnetic material is \(\chi\) at 27° C. At what temperature its susceptibility be \(\cfrac{\chi}{3}\) ?

Answer 1

Data: ^\(\chi\)_m1 = ^\(\chi\), T = 27°C = 300 K,^{\(​​​​\chi\)}_m2 = ^\(\chi\)/3

By Curie’s law,

This gives the required temperature.