Physics-
General
Easy

Question

For a paramagnetic material, the dependence of the magnetic susceptibility X on the absolute temperature is given as

  1. X proportional to T    
  2. X proportional to 1 divided by T to the power of 2 end exponent    
  3. X proportional to 1 divided by T    
  4. Independent    

The correct answer is: X proportional to 1 divided by T


    For paramagnetic materials, the magnetic susceptibility gives information on the molecular dipole moment and hence on the electronic structure of the molecules in the material. The paramagnetic contribution to the molar magnetic susceptibility of a material, X is related to the molecular magnetic moment Mby the Curie relation
    X equals c o n s t a n t cross times fraction numerator M over denominator T end fraction ⟹ X proportional to fraction numerator 1 over denominator T end fraction

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