dipole moment

Let us learn about dipole moment

The product of the magnitude of the charge & the distance of separation between the charges is said to be as Dipole moment. It is represented by the Greek letter 'm'. Mathematically it is equal to

Dipole moment (m) = charge (e) x distance of separation (d).

Dipole moment is expressed in the units of Debye & written as D

(1 Debye = 1 x 10^-18e.s.u cm)

Dipole moment is a vector quantity & is represented by head pointing towards a negative centre & a small arrow with tail at the positive centre.

Calculate the ionic character of HCl. Its measured dipole moment is 3.436 x 10^-30 coulomb meter. The HCl bond length is 2.29 x 10^-10 meter.

Dipole moment corresponding to 100 % ionic character of HCl

= 1.602 x 10^-19 C x 1.29 x 10^-10 m

= 20.67 x 10^-30 Cm

Actual dipole moment of HCl = 3.436 x 10^-30 Cm

In our next blog we shall learn about food web diagram I hope the above explanation was useful.Keep reading and leave your comments.