How will you determine dipole moment.

Que.: How will you determine dipole moment.

Ans.:

The dipole moment of substance can be experimentally determined with the help of an electrical condenser. The parallel plates of the condenser can be charged by connecting them to storage battery. When the condenser is charged, an electric field is set up with field strength equal to the applied voltage (V) divided by distance (d) between the plates.
The dipoles (polar substances) when placed between the changed plates, will rotate and align with the negative and towards positive plate and positive and towards the negative plate. Thus, all the molecules will align themselves in the electric field.
The plates are charged to a voltage V before the introduction of the polar substance. They are then disconnected from the battery.

Que.: How will you determine dipole moment.